An airplane with a wingspan of 30.0 m flies due north at a location where the downward component of Earth’s magnetic field is 0.600 x 10–4 T. There is also a component pointing due north that has a magnitude of 0.470 x 10–4 T. (a) Find the difference in potential between the wingtips when the speed of the plane is 2.50 x 102 m/s. (b) Which wingtip is positive?

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