Solve this plzzz : 3 For a coil having L=2mH, current flow through it is 1= t2e-1 - Physics - Electromagnetic Induction

Question

Solve this plzzz :

3 For a coil having L=2mH, current flow through it is 1=
t2e-1 then the time at which emf becomes
zero:-
1) 2 sec 2) 1 sec 3) 4 sec 4) 3 sec

Vijay Shankar Yadav · Accepted Answer

Dear Student,
Here must be e power -t

We have e=-dφdt=ddtt2e-t=-2te-t+t2e-t=0t=2s
Regards

Solve this plzzz..: 3. For a coil having L=2mH, current flow through it is 1= t2e-1 then the time at which emf becomes zero:- 1) 2 sec. 2) 1 sec. 3) 4 sec. 4) 3 sec.