Homework Help: physics

Posted by rick on Sunday, February 10, 2008 at 8:56pm.

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 - drwls, Monday, February 11, 2008 at 9:03am
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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