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Download (CP25) A 30 cm metal rod moves upward at 4
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Transcript
(CP25) A 30 cm metal rod moves upward at 4.0 m/s across a 1.5 T magnetic field pointing into the paper. Find (a) the magnetic force on an electron trapped in the rod (b) the work done by this force as the electron moves from end to end in the rod (CP26) The metal rod is connected to a pair of railing and a 800 Ω resistor. Find (a) the emf in the circuit (b) the magnitude and direction of the current (c) the force required to keep the rod moving at 4.0 m/s
