Figure 23-33 shows a zero-resistance rod sliding to the right on two zero-resistance rails separated by the distance L = 0.47 m. The rails are connected by a 11.7 resistor, and the entire system is in a uniform magnetic field with a magnitude of 0.750 T.
a) Find the force that must be exerted on the rod to maintain a constant current of 0.125 A in the resistor.
(b) What is the rate of energy dissipation in the resistor?
(c) What is the mechanical power delivered to the rod?
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