Physics Help! A 0.75 m-long solenoid consisting of 1200 turns is used to generate a magnetic field 0.30 T. How?

A 0.75 m-long solenoid consisting of 1200 turns is used to generate a magnetic field 0.30 T. How much current is required?

Please show work! Thank you!

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  • Anonymous
    7 years ago
    Favorite Answer

    B = muo x n x i

    => i = B/muo n where muo = 4pi x 10^-7; n = no. of turns per unit length; B = magnetic field induction

    i = 0.30/(4pix10^-7x1200/0.75)

    => i = 149.2A

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  • 3 years ago

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