Answer:i
Induced emf will be equal to 83.25 volt
Explanation:
We have given value of inductance L = 1.85 H
Initially the current flow is equal to 0.450 A
When switch is open current become 0 in 10 ms
So change in current di = 0.450-0=0.450 A
Time taken to change the current dt = 10 ms = 0.01 sec
Induced emf is equal to [tex]e=L\frac{di}{dt}[/tex]
So [tex]e=1.85\times \frac{0.45}{0.01}=83.25volt[/tex]
Induced emf will be equal to 83.25 volt
