MCQ
Two coils have a mutual inductance 0.005 H. The current changes in the first coil according to equation $I = I _0 \sin$ $\Omega t$, where $I _0=10 A$ and $\omega=100 \pi rad s ^{-1}$. The maximum value of emf in the second coil is
- A$12 \pi$
- B$2 \pi$
- ✓$5 \pi$
- D$6 \pi$
