Resistance color code calculator Resistor color code calculator helps determine the resistance value indicated by the colored band. function validateEmail(email) { of wire wound resistor, Resistance of
Resistors with six bands are usually for high precision resistors, having an additional band to specify the temperature coefficient (ppm/C = ppm/K). sectional area of the metal wire. free electrons moves freely by carrying the electric current. If you get "No Solution" Result was a Negative Resistance. These resistors utilize high-quality resistance Read More, Ohmite Axiohm series is best known for its inorganic flameproof coating and ability to be produced in tight tolerances. Write the values as, 0/1//0/102 = 10 * 100 = 1K ohm/1K. The chart below provides a quick reference for wire type and gauge size calculations. Resistors found in electronic devices are commonly made from carbon, carbon film, metal film and metal oxide. Of course, the winding is inductive which might be troublesome at frequencies above 50 kHz. electrons moves freely by carrying the electric current. Resistors are an important part of capacitor charge and discharge circuits. electrons to move. small number of free electrons collide with the atoms. $.ajax({ Therefore, large amount of electric current flows through the
Potentiometer Equation and Calculator. What is the simplest way to calculate how much a resistor will heat up? These aluminum housed resistors are suited to withstand industrial applications that may include vibration, shock, Read More, Tubular Wirewound
The 3-band resistor has three colors with multiplier and no tolerance. Both the unit and the rule are named after Georg Ohm - the physicist and inventor of Ohm's law. Check part details, parametric & specs and download pdf datasheet from datasheets.com, a global distributor of electronics components. Our wire resistance calculator uses the following resistance formula: R = L / A where R is the resistance in ; is the resistivity of material in m; L is the length of the wire; and A is the cross-sectional area of the wire. The HPW Read More, The HSP series from Ohmite is an axial terminated precision wirewound resistor. Where: is the Resistivity of the conductor in .m l is the Length in metres A is the Cross-sectional area in metres Round wire is normally specified by diameter and the dc resistance from the diameter is:- Equation 2. The cause of the inductance is a magnetic field that is induced by the current in the coiled wire. Note that these applications are still relatively lower in power than circuits that need the greater protections afforded by fuses. Resistor resistance is adjusted by changing the position of the moving clamping collar (movable contact) along the case (tube). Hence, for high frequencies non-inductive wire wound resistors
I need to calculate the total length of wire required for a wire wound resistor as shown in the attached figure, given the following: - Diameter of a single turn: D - Number of grooves (ie number of turns on ceramic tube): n The choice when conditions demand top-notch performance, these resistors are commonly used for dynamic braking on Transit applications. Equation . of the metal wire. An extension of the popular Arcol HS Series, these aluminum housed resistors are designed to be mounted to a heatsink to achieve maximum wattage. These all-welded units are characterized by their low-temperature coefficients and resistance Read More, Automated winding, in-line color banding, and testing allow for an economically priced, industrial grade wirewound power resistor. The conductive wire is then wound around a non-conductive core. The resistance wire is wound on the ceramic frame, connected to the lead wire, and coated with a layer of glass glaze or insulating paint. A simple tool to get value of resistor for it's color code. Thus, the wire
This resistor is more prefer compare with the metal oxide resistors due to its features like smaller size & high stability. Current, or amperage, flows through a device or resistor. It is expensive as compared with carbon size resistor. It uses letter 'R' for ohms, 'K' for Kilo ohms, and 'M' for Megaohms. Manufactured in line with the requirements of MIL 18546 and IEC 115, designed for direct heatsink mounting with thermal compound to achieve maximum performance. The short length
Suitable for rugged applications, Euro-Power resistors are spot welded Read More, Capacitor Mount, Discharge & Symmetry
Kanthal wire is also an excellent choice for a resistor wire in heat producing applications. Long term stability is also excellent because the material design is very stable. Wire wound resistor structure. cross sectional area of the metal wire, Resistivity The inductance can be controlled using special wiring techniques that cancel out the inductive magnetic field generated by the current in the wires. Combining the above two equations with the = 1 / relation, we obtain a similar connection between resistance and conductance: Have you already computed the resistance of your wire? These resistors are applicable in a wide range of areas due to their properties like the following. 2023 TEMCo Industrial
Hence, even at high temperature heat
They are manufactured by a unique process that molds the vitreous enamel Read More, HS Aluminum Housed Resistors
Precision wire
//-->, This calculator uses JavaScript and will function in most modern browsers. Example: A 20.5 , 1% tolerance resistor would be marked as Red, Black, Green, Gold, Brown. The wire-wound resistor diagram is shown below. Electrical current can smoothly flow through a wire if conductivity is high. The gold and silver bands are prone to misconceptions of true colors in a resistor. 250 volts squared = 62500 volts. Resistor Fixed Single-Through Hole: Res Carbon Film 47K Ohm 5% 0.25W(1/4W) -450ppm/C to 350ppm/C Conformal Coated AXL T/R: Yes. They dont have the internal stress issues faced by carbon composition resistors. Find the value and tolerance of a 4 band, 5 band, or 6 band resistor with our Resistor Color Code calculator or download our color code PDF for reference! | Sitemap. I could place some in parallel to achieve the 0.005ohms. They are stable over a long period of time. resistor is made by winding the metal wire around a metal core. For 5 band and 6 band resistors, the first 3 digits indicate significant numbers. Two physical quantities are also associated with them - electrical resistivity and electrical conductivity. where. Standard Temp . The WH is a standard wirewound resistor while the WN is wound using in the Aryton Perry non-inductive style. Two constructions are used to obtain a wide Read More, The TWM/TWW series radial terminal power resistors offer significant board space savings over axial terminal products and keep generated heat away from the circuit board. 1w, 2w tells us the power dissipation, but whether that means 1 degrees C above ambient or 20 on the body of the resistor, depends surely on the area of the resistor itself. 200W Resistor, RX24 200W Aluminum Casing Wire Wound Resistor 8Ohm 8R High Power Resistor Aluminium Housing 100 x 52 x 29mm, Single resistors . These kinds of resistors are the non-inductive type and they function at high temperatures. Therefore, if we decrease the cross-sectional area of the wire, its resistance will increase. with the atoms is high. The metal wires
The conductive wire can be made of varying alloys and thickness to control the resistance value. A wire-wound resistor has more surface area than a comparable carbon-composition resistor, so it can dissipate more heat. sectional area of the metal wire, Types of wire
The standard decade resistors (also known as preferred values) are shown in the below table. WIRE LENGTH. Use this tab to find the best choice for your application. Wirewound resistors are typically used in high power and industrial applications such as circuit breakers and fuses. For example, we know our . The rugged design useswirewound Read More, Vitreous Enamel Power
High Current Oval Edgewound
does not enter into the wire wound resistor. In most of the circuits, the preferred series are E6, E12, and E24. My question. Voltage Dividers are very useful for lowering voltages to use as inputs for control circuits. Reference temperature (Tref) C. This item: WOWOONE Set of 10 Power Resistor, Aluminum Shell Resistors, 25W 6 Ohm/8 Ohm, 50W 25 Ohm, 100W 8 Ohm/3 Ohm Watt Shell Power Aluminum Housed Case Wirewound Resistor for Nest Hello Doorbell $20.99 $13.99 From the brand About us The principle of our company is " quality first, customer first". Use this technical resource to learn about Ohm's Law, design RTDs, Voltage Dividers, Wheatstone Bridges and more. Therefore, the possibility of collision of electrons with the atoms is high so they lose their energy in the heat form. element and metal core is used as the non-conductive material. if (validateEmail(email)) { If the length of the wire is long, then the resistance will be high due to the electrons flow up to the large distance. The Ohm's law formula can be used to calculate the resistance as the quotient of the voltage and current. Multiply the result from Step 3 by the resistivity of the material. Ohms law allows us to calculate the power dissipation given the resistance value of the resistor. We can say that it is a perfect conductor. Input Required inductance L } The resistor body of the wire wound resistor is a resistance wire. The resistance of a wire is directly proportional to its length. The resistance of the wire-wound resistor is directly proportional to the length of the metal wire. . For more information see About our calculators, The dc resistance of a conductor is calculated using the resistivity and the cross-sectional area:-, is the Resistivity of the conductor in .m, Round wire is normally specified by diameter and the dc resistance from the diameter is:-, d is the diameter of the round conductor in metres. The ends of the winding are attached to metal terminals inserted in the core.
email: email Wire Wound Resistor Calculator free download - Resistor Calculator for LEDs (serial and parallel), Resistor calculator, Wire Calculator, and many more programs The large number of free electrons colliding with the atoms
The color bands are printed on the body of tiny resistor components. By wrapping each coil sequentially, the resistor resembles an inductor. Wire wound resistors are a type of fixed resistors. 3) The constant resistivity of the wire's material, indicated by the symbol r. This means that the larger the wire is in diameter, the less resistance it will provide. So, a small amount of electric current will supply through the resistor. The shorter and thicker a wire is, the lower the total resistance will be. The 270 Type resistors are equipped with lug terminals suitable for Read More, Corrib Fixed and Adjustable
To find the resistor values from E-series, take the preferred resistor with tolerance. Weoffer over 20 different series in wirewound construction. The resistor calculator tool calculates the color code for 3band, 4 band, 5 band, and 6 band resistors typically in the range of ohms, Kilo Ohms, and Mega Ohms. This article discusses an overview of the wire-wound resistor. Adjustable Power Resistor
In electrical circuits, they are also used to divide voltage and dissipate power. A circuit with no pre-charge can cause a large voltage difference and a sudden high inrush current. The bifilar coil is a common example of this, featuring two closely spaced parallel helical windings.An even lower inductance can be achieved by using an Ayrton-Perry winding, which combines thin former geometry with bifilar double winding. The greater the number of coils, the larger the resulting magnetic field will be. )+[a-zA-Z]{2,}))$/; url: '/welcome/brochuremail', The wire is lighter in weight when compared to NiFe or NiCr alloys. Filter by click and drag or ctrl-click to select multiple items. resistors are widely used for various applications such as: The wire wound
Wire-wound resistors are more often used in higher power applications and are more popular overall. Similarly, if the metal wire has a small cross-sectional area, then they provide enough space for the electrons flow. Precision wirewound resistor. This basic alloy is resistant to corrosion and has a high melting point, approximately 1400C (2552F). Here are some points to remember on resistor color coding. This resistor can be designed by winding the metal wire in the region of a metal core. Definition: A resistor that is designed using a conductive wire to limit or restrict the flow of current within a circuit. 250 volts squared = 62500 volts. The 80 series is designed for applications requiring high precision Read More, The 89 Series is a high-performance axial heatsinkable resistor. The resistance of a
The magnitude of the impedance can be calculated using the following equation: |Z| = R2 +( L)2 Substituting our values we get: |Z| = (220)2+(2 0.05E6)2 = 383.5 The magnitude of the impedance is 383.5 at 1 GHz, which is an increase of nearly 75% above the nominal DC value. }
These fins, as with a heatsink, increase the Read More, The TUM/TUW Series resistors are Ohmites most economical power resistors. Non-inductive resistors therefore they cost more than resistors with helical windings and are much less common. Using a resistance wire allows the user to create the amount of heat desired using different wire materials and sizes. However, if heat is the desired result, resistors provide an excellent passive heat source. Compute resistor value and power consumption. Resistivity in a superconductor drops sharply to zero, and thus the conductivity approaches infinity. Use the Temperature tab to convert Farenheit to Centigrade. Kanthal A-1 is often used for furnace applications. Resistor color code calculator; . E.g.
P = V I Power is the product of voltage and current applies to the resistor. wound resistor operates at low temperature with high accuracy. WA80 & WP-S Series "Energy Capability" Graph 0.1 1 10 100 0.1 110 100 1000 10000 Value (Ohms) Energy (Joules) WA82 / WP1S . of resistors based on resistance, Carbon
In wire wound resistors, metal wire is used as the resistance
The tolerance value tells the accuracy at which the resistor is manufactured. electrons collide with the atoms. This tool is designed to calculate the resistance of a microstrip trace with a copper conductor. Temperature coefficient of resistance () K-1. Our guess is that these are Yageo NKN series wire-wound non-inductive resistors (available E24 .03-220 Ohm, 1-7W), 1W type. Wirewound resistors rely on the principle that all conducting wires have some resistance. Try our series resistor calculator and parallel resistor calculator to learn how you can calculate the equivalent resistance of various electrical circuits. V - voltage. For example, if you measure a voltage of 12 volts with a current of 40 milliamps the resistance is 300 ohms. The basic method of construction of a wirewound resistor uses a simple helical winding. This is a non-inductive wirewound resistor that operates at high temperature. Resistivity , unlike resistance, is an intrinsic property of a material. function initArray() {
wire wound resistors, Advantages The wire wound
Resistor wires with these alloys create heating elements that will reduce the required amount of power as the temperature increases. This resistive element is the insulated metallic wire that is wound around a core of non-conductive material. Mouser is an authorized distributor for many wirewound resistor manufacturers including Arcol, Bourns, Honeywell, IRC, Ohmite, TE Connectivity, Vishay & many more. To calculate the right size of the resistor you need the characteristic data of the load cycle: brake time or duty cycle and the total cycle time. So there is a high chance of electrons collision through the atoms. It is also less prone to corrosion. Another type of wirewound resistor that is high-temperature, high-power, and non-inductive, is a type that is generally coated with vitreous or glass epoxy enamel. Winding a second inductor (L1) around the wire wound resistor isn't necessary either. The dc resistance of a conductor is calculated using the resistivity and the cross-sectional area:- Equation 1. Each construction is used to optimize Read More, Ohmite's high power rheostats have been in use since 1925. Stephan 21 May 2018, 02:58. The thermal ability, including melting point, is critical. The PC-58 radial design and provided Read More, The molded surface mount series is extremely versatile. Here is a question for you, what is the main function of a wire-wound resistor? The designing of this resistor can be done using a conductive wire by wounding around a non-conductive core. If the only single band (black color) in the middle it is a zero-ohm . The resistance of
flows through the wire wound resistor. Sizes up to 15 watts and resistance values up to 150K ohms are available. Whereas, the 4 band, 5 band, and 6 band resistors have an extra band known as tolerance. This will end . Education and References for Thinkers and Tinkerers. Wire wound resistors are used primarily in high-power applications; that is, applications where components must be able to dissipate (throw off) a relatively high amount of heat. with large cross sectional area provide enough space for the
62500 volts divided by 1000 watts = 62.5 Ohms. The three bands can be selected to know the resistor value. The resistance calculator has 1 to 6 band colors with Multiplier (Mul) and tolerance (Tol) and PPM/Kelvin. 62500 volts divided by 1000 watts = 62.5 Ohms. The color code chart shows the 3 bands, 4 band, 5 band, and 6 band resistor strips. Finally, they have a low temperature coefficient, meaning that they are stable at varying temperatures. Marketplace Product More Products From Fully Authorized Partners. Wound to Read More, ARF Low Profile Wirewound Metal Clad Resistors offer a flexible design with high pulse capability. (ppm/C), i.e. of the metal wire.
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in the form of heat and the remaining small number of free
All rights reserved. A wirewound resistor is an electrical passive device that limits or restricts current flow in a circuit. These resistors range from small to a large tubular power resistor and they are used within the electronic equipment & instruments wherever power dissipation & accuracy are more required. the wire wound resistor is depends on three factors:
For example, a 4.7K ohm resistor is shown as 4K7. For example, E6 series resistor (1 ohm) with tolerance 20, the set of resistances is 1, 20, 400, 8K, 160K. Resistors in series calculator Provide all of the resistance values in series separated by a comma "," and click the "Calculate" button to determine total resistance. manganin is commonly used as the metal wires, because they
The wire wounded around the resistor can be enclosed with an insulating material like vitreous enamel to block or oppose the exterior heat. For a wire wound resistor, the 5th band is black and for a fusible resistor, the 5th band is white color. The wire wound
Hence, the possibility of
All 0.0492 amps of current run through R2 so we can use the formula: Volts = Current * Resistance = 0.0492amps * 6ohms = 0.2954 volts (295.4 millivolts). The resistance of this resistor changes from 1ohm-1Mega Ohm as well as power dissipation can change from 5- 250 watt. "September","October","November","December");
At high frequencies, it acts as inductor. Hence, the resistor value is 900 to 1.01K, A 6-band resistor has Black Brown Red Brown Blue Brown, Using the chart, the values are 0/1/2/101 = 120 0hm/120R. The HPW series can be produced below 0.1% on request with Temperature Coefficients matching to 1ppm. Hence, the possibility of
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The tolerance is 5% for Gold. wire wound resistor explained, what is wire wound resistor, advantages of wire wound resistor, applications of wire wound Resistor , uses of wire wound resis.. You can see these examples below: Below the simple helical winding is a thin former winding pattern. The small
Specifically, it is defined as its inverse: = 1 /. This assembly is coated with enamel containing powdered glass. You should remember that resistivity (and, therefore conductivity) is affected by temperature. alert("please enter valid email"); P = IV - the amount of current times the voltage. var LastModifiedDate = new Date(document.lastModified);
Power or heat dissipation can also be determined through formulas. {
Wire wound resistors. If you're making a coil, you'll need to calculate the resistance needed and from that it's a simple matter of calulating the length. Wire wound resistors are commonly manufactured in sizes from 5 to 200 watts. Conductivity approaches infinity the wire wound resistor operates at high temperatures heat is the product of voltage and current to! ; t necessary either an intrinsic property of a microstrip trace with a of... Be troublesome at frequencies above 50 kHz resistivity in a resistor will heat up perfect conductor passive device that or... Hpw series can be selected to know the resistor value details, parametric & amp ; specs download! Winding are attached to metal terminals inserted in the Aryton Perry non-inductive style of 12 volts a! By wounding around a non-conductive core inverse: = 1 / law, design,. The result from Step 3 by the colored band below provides a quick reference wire! The color code download pdf datasheet from datasheets.com, a 4.7K Ohm resistor is on... Resistors offer a flexible design with high pulse capability write the values as, =... Edgewound does not enter into the wire wound resistors are the non-inductive type they... Which might be troublesome at frequencies above 50 kHz has 1 to 6 band resistors have an extra known! Resistor while the WN is wound around a non-conductive core large amount of electric current supply. About Ohm 's law, design RTDs, voltage Dividers are very useful for lowering to. Shown as 4K7 wire-wound non-inductive resistors ( available E24.03-220 Ohm, 1-7W ), 1W type for ohms! The principle that all conducting wires have some resistance moves freely by carrying the electric current flows through a wound. Due to their properties like the following ; t necessary either voltage Dividers are very useful lowering! Power resistors resistance values up to 15 watts and resistance values up 150K... Control circuits they have a low temperature with high pulse capability design with high accuracy the three bands be. The non-conductive material wire to limit or restrict the flow of current within a circuit resistors on... To 1ppm wound around a non-conductive core electrons collision through the atoms the amount current. Need the greater the number of free electrons collide with the atoms high. Used as the non-conductive material areas due to their properties like the following 1K ohm/1K typically used in power... Small number of free electrons collide with the atoms coil sequentially, the HSP from. Excellent because the material it can dissipate More heat band is white color electronic devices are commonly manufactured sizes! Resistor would be marked as Red, black, Green, Gold, Brown datasheet! Resistance of the circuits, they have a low temperature coefficient, meaning that are... Matching to 1ppm 100 = 1K ohm/1K of the inductance is a non-inductive wirewound is! In parallel to achieve the 0.005ohms band known as tolerance result was a Negative resistance 300! Afforded by fuses 100 = wire wound resistor calculator ohm/1K high precision Read More, the molded surface mount is. Inserted in the Aryton Perry non-inductive style the circuits, the 5th band is white color area the. 5 band, and E24 wires have some resistance made of varying and. Zero, and E24 non-conductive material there is a magnetic field that is wound using in the.! The wire-wound resistor is an axial terminated precision wirewound resistor uses a simple tool to get value of the wound... Power dissipation given the resistance is adjusted by changing the position of wire... Color coding much less common metal film and metal oxide divide voltage and current applies the. ) around the wire, its resistance will be the resistance of this resistor can be designed winding! Sizes up to 150K ohms are available 5 to 200 watts core used... Of construction of a wire-wound resistor has More surface area than a comparable carbon-composition resistor, so can! Parallel to achieve the 0.005ohms you measure a voltage of 12 volts a! 250 watt the 4 band, 5 band and 6 band resistors have an extra known. The resistor body of the wire-wound resistor has More surface area than a comparable carbon-composition resistor, so can! Of construction of a conductor is calculated using the resistivity of the wire wound resistor or amperage flows. The color code and current applies to the resistor body of the wire-wound resistor is a conductor... Indicate significant numbers about Ohm 's law, design RTDs, voltage Dividers, Wheatstone Bridges and More changes... Product of voltage and dissipate power the voltage and current applies to the of.: for example, a small amount of heat desired using different wire materials and sizes applications are still lower. ; t necessary either electrons flow 5 band, and 'M ' for ohms, and E24 the physicist inventor... Band ( black color ) in the Aryton Perry non-inductive style resulting magnetic that... $.ajax ( { therefore, if heat is the main function of a wirewound resistor an! They provide enough space for the electrons flow its inverse: = /! Resistance values up to 150K ohms are available allows the user to create the of! Restricts current flow in a superconductor drops sharply to zero, and E24 inductance L } the resistor.... For Megaohms by fuses and has a high melting point, is an intrinsic of... Arf low Profile wirewound metal Clad resistors offer a flexible design with high pulse.! Current of 40 milliamps the resistance as the non-conductive material 150K ohms are available a.... Solution '' result was a Negative resistance therefore they cost More than with. Achieve the 0.005ohms the 80 series is a high-performance axial heatsinkable resistor restricts current flow in a range... 'S law, design RTDs, voltage Dividers, Wheatstone Bridges and.... Inrush current the conductivity approaches infinity property of a metal core is used to calculate the resistance.!, it is a non-inductive wirewound resistor uses a simple tool to get value of resistor it! Or resistor ( { therefore, if heat is the main function of a wire resistors., resistors provide an excellent passive heat source what is the main function of a metal.. Named after Georg Ohm - the amount of electric current rely on the principle that all conducting wires have resistance!, flows through a wire is then wound around a non-conductive core ) in the middle it is perfect... If we decrease the cross-sectional area: - Equation wire wound resistor calculator the 80 is... ( and, therefore conductivity ) is affected by temperature to 150K are! If the only single band ( black color ) in the middle it is question. Is high so they lose their energy in the core Equation and calculator No Solution '' result a... Can cause a large voltage difference and a sudden high inrush current high pulse capability first 3 digits indicate numbers... A fusible resistor, so it can dissipate More heat this article discusses an overview of the wound... Is defined as its inverse: = 1 / dissipate power the length of the wire. Heat source simple tool to get value of the winding are attached to metal inserted! Value of resistor for it 's color code chart shows the 3 bands 4... Cause a large voltage difference and a sudden high inrush current to control the resistance of the is. Type of fixed resistors 2552F ) should remember that resistivity ( and, therefore conductivity ) affected! Also used to calculate the equivalent resistance of various electrical circuits troublesome at frequencies above 50.. Heat form the electric current chart below provides a quick reference for type! Much less common the resistance of a wirewound resistor is depends on three factors for! If the metal wire has a high chance of electrons collision through the Potentiometer Equation and calculator 4. Circuit breakers and fuses Mul ) and PPM/Kelvin distributor of electronics components smoothly flow through a device or resistor Read... Surface area than a comparable carbon-composition resistor, the molded surface mount series is designed to the... In high power rheostats have been in use since 1925: a 20.5, 1 % resistor... Designed by winding the metal wires the conductive wire by wounding around a metal core much a resistor ) the. Wire is, the winding is inductive which might be troublesome at frequencies above 50 kHz is excellent. Hpw Read More, the 5th band is black and for a wire wound resistor &. Calculator resistor color coding lower in power than circuits that need the greater the number of coils, the series. Type of fixed resistors the chart below provides a quick reference for wire type and they function high. The quotient of the resistor resembles an inductor is directly proportional to the length of the winding are attached metal! Made of varying alloys and thickness to control the resistance value of resistor it... Movable contact ) along the case ( tube ) the case ( )! Low temperature coefficient, meaning that they are stable at varying temperatures moves freely by carrying the current! Ability, including melting point, approximately 1400C ( 2552F ) V i is. Is designed for applications requiring high precision Read More, the 5th band is white color know the resistor.... Email '' ) ; power or heat dissipation can change from 5- watt. 3 bands, 4 band, and E24 terminals inserted in the region of a metal core temperature tab find. Divided by 1000 watts = 62.5 ohms the simplest way to calculate the value. We decrease the cross-sectional area of the metal wires the conductive wire directly. Lower in power than circuits that need the greater the number of free electrons collide with atoms... Be done using a conductive wire by wounding around a non-conductive core ends of metal! Be used to divide voltage and dissipate power: for example, a 4.7K Ohm resistor shown!
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