A long solenoid of radius R carries a time t dependent current I t = I 0 t 1 - t . A ring of radius 2 R is placed coaxially near its middle. During the time interval 0 ≤ t ≤ 1 , the induced current I

Question

A long solenoid of radius R carries a time t dependent current I t = I 0 t 1 - t . A ring of radius 2 R is placed coaxially near its middle. During the time interval 0 ≤ t ≤ 1 , the induced current I R and the induced E M F V R in the ring change as:

TestHub · Accepted Answer

I = I 0 t - I 0 t 2 ϕ = B A ϕ = μ 0 n I A V R = - d ϕ d t = - μ 0 n A I 0 1 - 2 t V R = 0 at t = 1 2 And I R = V R R e s i s t a n c e o f l o o p = 0

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