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10 December, 22:01

How does the voltage across a resistor compare the voltage across an inductor vl vr?

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  1. 10 December, 23:33
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    The voltage across a resistor is always the product of its resistance

    and the current through it.

    ... If the power supplied to the circuit is DC, then the inductor behaves

    like another resistor, equal to the resistance of the wire or other material

    from which it's constructed. Its inductance has no effect in a DC circuit.

    ... If the power supplied to the circuit is AC, then the instantaneous voltage

    across an inductor is

    (its inductance) x (the rate at which the current through it is changing).
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