An inductor L , 5 Ω and 10 Ω resistors are all connected in series – McqOptions

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1.	An inductor L , 5 Ω and 10 Ω resistors are all connected in series across a voltage source v(t) = 50 cos ωt volt. If the power consumed by the 5 Ω resistor is 10 W, then the power factor of the circuit is
A.	0.3
B.	0.4
C.	0.6
D.	0.8
Answer» D. 0.8

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