29. Sources of Magnetic Field
29. Sources of Magnetic Field / Magnetic Field Produced by Loops and Solenoids / Problem 7
A rectangular loop of wire with dimensions of 3.0 m by 2.0 m carries a 20.0 A current. The loop weighs 3.0 kg and is hinged at one edge on a smooth horizontal surface. If the current flows in the direction shown below, what should be the strength of a uniform horizontal magnetic field so that the loop stays at an angle of 30 degrees to the horizontal surface in equilibrium?
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