MCQ
The current through choke coil increases form zero to $6A$ in $0.3$ $seconds$ and an induced $e.m.f$. of $30\, V$ is produced. The inductance of the coil of choke is.......$H$
- A$5$
- B$2.5 $
- ✓$1.5$
- D$2 $
✓
Answer
Correct option: C.
$1.5$
c
(c) $|e|\, = L\frac{{di}}{{dt}}$
(c) $|e|\, = L\frac{{di}}{{dt}}$
$\Rightarrow 30 = L \times \frac{{(6 - 0)}}{{0.3}}$
$\Rightarrow L = 1.5\;H$
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