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Physics 22 Online
OpenStudy (anonymous):

a square wire 2.0 cm on each side is oriented so that a 5.00 mT magnetic field makes a 30.0 degrees angle with the normal to the plan of the square. If a 1.0 mA current causes a 32.0 N * m torque on the wire, how many loops does the wire make?

OpenStudy (anonymous):

the answer is 3.2*10^10 but I need to know how to do it

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