The average power dissipated in A.C. circuit is 2 watt. If a current flowing through a circuit is 
and impedance is 
, what is the power factor of the A.C. circuit?
A
0
B
0.5
C
D
1
Text Solution
Verified by ExpertsThe correct answer is:
B
Average power dissipated in A.C. circuit is
where 
is the power factor of the circuit.
Here, 
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