Physics-
General
Easy
Question
Flux
(in weber) in a closed circuit of resistance 20
varies with time t (in secon(d) according to equation
The magnitude of the induced current at t =0.25 s is
- 1.2 A
- 0.8 A
- 0.6 A
- 0.1 A
The correct answer is: 0.1 A
From, Faraday’s second law,
= 
= 
Now, 
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