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16 April, 05:59

A wire of a certain length is carrying a current of 2.0 A. It is placed at an angle of 60° with respect to a magnetic field of strength 0.20 T. If the wire experiences a force of 0.40 N, what is the length of the wire?

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  1. 16 April, 06:22
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    1.2 m

    Explanation:

    i = current flowing through the wire = 2.0 A

    θ = Angle between the length of wire and magnetic field = 60° deg

    B = magnitude of magnetic field = 0.20 T

    L = Length of the wire = ?

    F = Magnitude of magnetic force experienced by the wire

    Magnetic force on the wire is given as

    F = i B L Sinθ

    0.40 = (2.0) (0.20) L Sin60

    L = 1.2 m
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