1.

A lamp consumes only 50% of peak power in an a.c. circuit. What is the phase difference between the applied voltage and the circuit current                                            [MP PMT 2004]

A. \[\frac{\pi }{6}\]
B. \[\frac{\pi }{3}\]
C. \[\frac{\pi }{4}\]
D. \[\frac{\pi }{2}\]
Answer» C. \[\frac{\pi }{4}\]


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