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NEETPhysicsElectromagnetic Induction

The current i in a coil varies with time as shown in the figure. The variation of induced emfwith time would be

Correct answer

3

Step-by-step solution

We know, inducedemf e =- L di dt During 0 to T 4 , di dt = constant So , e =- ve For T 4 to T 2 , d i d t =0 i.e., e =0 For T 4 to 3 ~T 4 , di dt = constant i.e., e =+ ve

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