A) 1 H
B) 0.5 H
C) 1.5 H
D) 2 H
Correct Answer: D
Solution :
From the formula, \[\varepsilon =-L\frac{dI}{dt}\] Take magnitude on both sides. \[\left| \,\varepsilon \, \right|=\left| -L\frac{d\,I}{dt} \right|\] or \[\varepsilon =L\frac{d\,I}{dt}\] \[\therefore \] \[80=L\left( \frac{2}{0.05} \right)\] \[\Rightarrow \] \[80=L\times 40\] \[\Rightarrow \] \[L=\frac{80}{40}\] \[\Rightarrow \] \[L=2H\]You need to login to perform this action.
You will be redirected in
3 sec