Basic concepts

Dielectric Strength | Constant | Loss | Definition

Normally, no current flows through insulators or dielectric materials. However, when the voltage applied to such materials exceeds a certain value, then it breaks down and a heavy electric current (much larger than the usual leakage current) flows through it. If the insulator is a solid medium, it gets punctured or destroyed.   Dielectric Strength …

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Electric Resistance | Resistivity | Definition | Formula

When the voltage is applied to an electrical circuit, the free electrons starts moving. When they are moving they collide with the other atoms and molecules of the substance. These collisions offer opposition to the flow of electrons or current called electric resistance.    Electric Resistance Definition | Formula | Explanation   Hence, the opposition …

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