Question

The magnetic flux o (in weber) linked with a coil of resistance 10 a varies with time t (in second) as $ = 8t - 4t+1.The current induced in the coil at t = 0.1 sec is :
(a) 10 A
(b) 0.24 A
(c) 1 A
(d) 0.38 A
(e) 0.5 A
​

Answer 1

Explanation:

d$/dt= 8-4=4

as pet Faraday,2nd law

induced e.m.f = - 1*4=-4

hence induced current will be 4/10=)0.4 ampere.

ans. o.4 ampere