Question

$\Large{\underline{\underline{\bf{Question:-}}}}$
When an ac source is connected across an ideal inductor, show on a graph the nature of variation of the voltage and the current over one complete cycle. ​

Answer 1

Answer:

For an ideal inductor phase difference between current and applied voltage =

2

π

∴ Power,P=V

rms

I

rms

cosφ=V

rms

I

rms

cos

2

π

=0.

Thus the power consumed in a pure inductor is zero.

Answer 2

Explanation:

For an ideal inductor phase difference between current and applied voltage = 2π

∴ Power,P=V rms I rms cosφ=

V rms I rms cos π/2=0.

Thus the power consumed in a pure inductor is zero.

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