MCQ
The back $e.m.f.$ induced in a coil, when current changes from $1$ ampere to zero in one milli$-$second, is $4$ volts, the self inductance of the coil is
- A$1 H$
- B$4 H$
- C$10^{-3} H$
- ✓$4 \times 10^{-3} H$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.