Question
The mutual inductance between two coils is 2.5H. If the current in one coil is changed at the rate of 1A/s, what will be the emf induced in the other coil?
✓
Answer
$\text{M}=2.5\text{H}$
$\frac{\text{dl}}{\text{dt}}=\frac{\text{lA}}{\text{s}}$
$\text{E}=-\mu\frac{\text{dl}}{\text{dt}}$
$\Rightarrow\text{E}=2.5\times1=2.5\text{V}$
$\frac{\text{dl}}{\text{dt}}=\frac{\text{lA}}{\text{s}}$
$\text{E}=-\mu\frac{\text{dl}}{\text{dt}}$
$\Rightarrow\text{E}=2.5\times1=2.5\text{V}$
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