An inductor opposes changes in current. An ideal inductor would offer no resistance to a constant direct current; however, only superconducting inductors have truly zero electrical resistance. ) of the current and the frequency (f) of the current.

What is the resistance of an inductor?

The resistance of an ideal inductor is zero. The reactance of an ideal inductor, and therefore its impedance, is positive for all frequency and inductance values. The effective impedance (absolute value) of an inductor is dependent of the frequency and for ideal inductors always increases with frequency.

How do you find the resistance of an inductor?

The opposition of an inductor to a change in current is expressed as a type of AC resistance. I=VXL I = V X L , where V is the rms voltage across the inductor.