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Physics - EMI/AC Question with Solution | TestHub

PhysicsEMI/ACInduced Electric FieldMedium2 minPYQ_2001

PhysicsMediumsingle choice

A small piece of metal wire is dragged across the gap between the pole pieces of a magnet in $0.4 sec$ . If magnetic flux between the pole pieces is known to be $8 \times 1 0^{- 4} Wb$ , then induced emf in the wire, is

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Solution:

The charge of flux through the metal wire Time taken $Δ ϕ Δ t = 8 \times 1 0^{- 4} Wb = 0.4 sec$ $∴$ Induced emf. $e = \frac{Δ ϕ}{Δ t} = \frac{8 \times 1 0 ^{- 4}}{0.4} = 20 \times 1 0^{- 3} V$

Stream:AIIMSSubject:PhysicsTopic:EMI/ACSubtopic:Induced Electric Field

⏱ 2mℹ️ Source: PYQ_2001

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