In a series RL circuit, the two resistors of R = 5 Ω and 10 Ω, are connected in series with the inductor of L H. The supply voltage is 50 V. If the power consumed by the 5 Ω resistor is 10 W, then power factor of the circuit is:
1
0.828
2
0.424
3
0.567
4
0