MCQ
The mutual inductance between two coils is $1.25$ $henry$. If the current in the primary changes at the rate of $80$ $ampere/second,$ then the induced $e.m.f$ in the secondary is......$V$
- A$12.5$
- B$64$
- C$0.016$
- ✓$100$
✓
Answer
Correct option: D.
$100$
d
(d) $e = M\frac{{di}}{{dt}} = 1.25 \times 80 = 100\;V$
(d) $e = M\frac{{di}}{{dt}} = 1.25 \times 80 = 100\;V$
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