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21 November, 16:19

A solenoid has 100 turns per cm and a total resistance of 60 Ω center of the solenoid when it is connected to a 12 volt battery Determine the magnetic field in the 21 A flat c

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  1. 21 November, 16:22
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    2.5 x 10^-3 T

    Explanation:

    n = 100 turns / cm = 10000 turns / m, R = 60 ohm, V = 12 V

    i = V / R = 12 / 60 = 0.2 A

    Magnetic field due to solenoid is

    B = μ0 x n x i

    B = 4 x 3.14 x 10^-7 x 10000 x 0.2

    B = 2.5 x 10^-3 T
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