Alternating CurrentHard
Question
The self inductance of a choke coil is 10 mH. when it is connected with a 10 V D.C. source, then the loss of power is 20 watt. When it is connected with 10 volt A.C. source loss of power is 10 watt. The frequency of A.C. source will be :
Options
A.50 Hz
B.60 Hz
C.80 Hz
D.100 Hz
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