FIGURE 30.8 shows a circuit consisting of a flashlight
Chapter 30, Problem 30.11(choose chapter or problem)
FIGURE 30.8 shows a circuit consisting of a flashlight bulb, rated 3.0 V/1.5 W, and ideal wires with no resistance. The right wire of the circuit, which is 10 cm long, is pulled at constant speed v through a perpendicular magnetic field of strength 0.10 T. a. What speed must the wire have to light the bulb to full brightness? b. What force is needed to keep the wire moving?
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