a. If the downward component of the earth's magnetic field is 0.6 X 10^-4 T, and the tracks are 1.5m apart, how large is the emf produced between the tracks by a train traveling at 40 m/s?
c. Could the voltage be utilized at a train station at the distant end of the tracks? I would think Yes again, but how?
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Could the voltage induced between train's axles due to earth's magnetic filed be utilized? Answer is provided in a discussion format, along with two diagrams.