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Following figure shows an AC generator c...

Following figure shows an `AC` generator connected to a "block box" through a pair of terminals. The box contains possible `R,L,C` or their combination, whose elements and arrangements are not known to us.

Measurements, outside the box reveals that `e=75 sin(omega t) `volts, `i=1.5 sin(omegat+45^(@))` ampere. Then the wrong statement is

A

There must be a capacitor in the box

B

There must be an inductor in the box

C

There must be a resistance in the box

D

The power factor is 0.707

Text Solution

Verified by Experts

The correct Answer is:
B
Since, voltage lags the current, hence no inductor in the box
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