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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityCircuit AnalysisMedium2 minPYQ_2007

PhysicsMediumsingle choice

If the coefficient of mutual induction of the primary and secondary coils of an induction coil is $5 H$ and a current of $10 A$ is cut off in $5 \times 1 0^{- 4}$ second, the $e m f$ induced(in volt) in the secondary coil is

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Solution:

$M = 5 H, I = 10 A, t = 5 \times 1 0^{- 4} s$ . Now, emf induced in secondary is $e = - M \frac{d}{dt}, (-ve sign shows direction) \Rightarrow e = 5 \times \frac{10}{5 \times 1 0 ^{- 4}} = 1 \times 1 0^{+ 5} V$

Stream:VITEEESubject:PhysicsTopic:Current ElectricitySubtopic:Circuit Analysis

⏱ 2mℹ️ Source: PYQ_2007

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