Question

The magnetic flux linked with a coil varies with time

t as  = 4t

2 – 12t + 7, where  is in weber and t in

second. The induced current is zero at time t equals

to

(1) 2 s

(2) 3 s

(3) 0.5 s

(4) 1.5 s​

Answer 1

hope this hlp............