For the circuit shown below, given that v(t) =63cos(124t+74) Volts, i(t)=32.3cos (124t+9) A, R = 9 Ω, L = 21.2 mH and C = 8.3 µF, then the power factor of the voltage
source is:
is(t) R
C
Vs(t)
ZL
L
M
a. 0.42 Lagging
Ob. 0.68 Lagging
Oc. 0.42 Leading
Od. 0.68 Leading
Oe. -0.01 Lagging