The following sets of Vand I apply to the circuit in Figure P16–3. Calculate the complex power and the power factor.

State whether the power factor is lagging or leading.

(a) V ¼ 120ff30 VðrmsÞ; I ¼ 3:3ff  15AðrmsÞ

(b) V ¼ 480ff45 VðrmsÞ; I ¼ 8:5ff90 AðrmsÞ