A 12 cm long conducting bar is free to slide horizontally on the rails of a conducting frame,as shown. A light bulb with 45 Q of resistance is attached to the left end of the rails. A 2.0 Tuniform magnetic field is oriented perpendicular to the plane of the rails and bar. How fastdoes the bar need to slide along the rails in order to light the bulb to its full brightness at 75W?X X XX Xズ* XX X*, XXLXX 峇X x X X X

Length of the bar L = 12 cm = 0.12 m Magnetic field B = 2.0 T Resistance R = 45 Ω Power dissipated…

Answered: A 12 cm long conducting bar is free to…

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