The function of resistors is to oppose the flow of electric current in…
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Use this calculator to quickly calculate the equivalent resistance…
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What are PTC Thermistors? PTC stands for "Positive Temperature…
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What are supercapacitors? Supercapacitors are electronic devices which…
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What are trimmer capacitors? Trimmer capacitors are variable…
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Dielectric materials Dielectric materials are essentially insulators,…
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In a purely resistive AC circuit, power is simply power. If we add…
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What is a Variable Resistor? A variable resistor is a resistor of…
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Impedance and reactance An element in a DC circuit can be described…
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In a previous page, we discussed phasors, but we didn’t explore…
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As you now know, reactive components can cause a circuit’s power…
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What is a Rheostat? A rheostat is a variable resistor which is used to…
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What are polymer capacitors? Polymer capacitors are capacitors which…
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Metal Film Resistors Metal film resistors have a thin metal layer as…
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What is a Carbon Film Resistor? Carbon film resistors are a type of…
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Filter capacitors Capacitors are reactive elements, which make them…
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On this page you will find a collection of valuable books and other…
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In the previous page, we saw that the mathematical representation of…
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What is the Power Rating of a Resistor? The power rating of a resistor…
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What is a Foil Resistor? The metal foil resistor has the best…
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