Current in a 10 milli henry coil increases uniformly form zero to one to one ampere in 0.01 second, then the value of induced e.m.f. is
Answer & explanation
Correct answer: option 4
Induced Emf $\xi = -L\frac{di}{dt} = -10\times10^{-3}\times \frac{1-0}{0.01} = -1V$