Year: 2016 Phase 1
Topic: Electromagnetic induction
Time :
1. An inductor 20 mH, a capacitor 50 μF and a resistor 40 Ω are connected in series across a source of emf V = 10sin340t. The power loss in A.C. circuit is
(1). 0.76 W
(2). 0.89 W
(3). 0.51 W
(4). 0.67 W