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प्रश्न
The mutual inductance between two coils is 2.5 H. If the current in one coil is changed at the rate of 1 As−1, what will be the emf induced in the other coil?
उत्तर
Given:-
Mutual inductance between the coils, M = 2.5 H
Rate of change of current in one coil,
`(di)/(dt)=1 "As"^-1`
The flux in the coil due do another coil carrying current i is given by
ϕ = Mi
The emf induced in the second coil due to change in the current in the first coil is given by
\[e = \frac{d\phi}{dt}\]
\[ \Rightarrow e = \frac{d(Mi)}{dt} = M\frac{di}{dt}\]
\[ \Rightarrow e = 2 . 5 \times 1 = 2 . 5 V\]
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