Year: 2016 Phase 2
Topic: Electromagnetic induction
Time :
1. Which of the following combinations should be selected for better tuning of an L-C-R circuit used for communication ?
(1). R = 20Ω, L = 1.5H , C = 35μF
(2). R = 25Ω, L = 2.5H , C = 45μF
(3). R = 15Ω, L = 3.5H , C = 30μF
(4). R = 25Ω, L = 1.5H , C = 45μF