Make a drawing and use RHR-2 to find the direction of the magnetic field of a current
Chapter 22, Problem 20(choose chapter or problem)
Make a drawing and use RHR-2 to find the direction of the magnetic field of a current loop in a motor (such as in Figure 22.35). Then show that the direction of the torque on the loop is the same as produced by like poles repelling and unlike poles attracting.
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