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2 May, 16:00

An electromagnetic generator consists of a coil that has 100 turns of wire, has an area of 400 cm2, and rotates at 60 rev / s in a magnetic field of 0.25 T directed perpendicular to the rotation axis. What is the magnitude of the emf induced in the coil?

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  1. 2 May, 17:20
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    376.8 Volt

    Explanation:

    N = 100, A = 400 cm^2 = 400 x 10^-4 m^2, B = 0.25 T, f = 60 rps

    Maximum value of induced emf is given by

    e = N x B x A x w

    e = 100 x 0.25 x 400 x 10^-4 x 2 x 3.14 x 60

    e = 376.8 Volt
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