An RLC series circuit consisting of R = 4 Ω, inductive reactance = 6 Ω and capacitive reactance = 3 Ω is connected across a 220 v, 50 Hz single-phase AC supply. The power factor of the circuit is:
1
0.6 leading
2
0.7 lagging
3
0.6 lagging
4
0.8 lagging