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7 November, 11:18

A rectangular coil with dimensions of 8.0 cm*10 cm is dropped from a zero magnetic field position to a 1.4 T magnetic field in 0.10 s. The coil has 60 turns and is perpendicular to the magnetic field. What is induced emf in the coil as a result of this?

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  1. 7 November, 11:38
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    Explanation: 6.72v

    According to the formula for induced EMF

    EMF = NBA/t

    where

    N = no of turns

    B=magnetic flux density

    A=Area in meters

    t = time

    EMF = (60) (1.4) (0.08) (0.1) / 0.1

    EMF = 6.72V
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