physics

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An electric power line carries a current of 1600 A in a location where the earth's magnetic field is 4.0*10-5 T. The line makes an angle of 75° with respect to the field. Determine the magnitude of the magnetic force on a 130 m length of line.

  • physics -

    F = B i L sin 75
    B is the megnetic field in Tesla
    i is the current in amperes
    L is the length of the wire

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