A very thin 25 centimeter copper bar is aligned horizontally along the east-west direction.
A) If it moves horizontally from south to north at 12 meter per second in a vertically upward magnetic field of 1.24 T, find what potential difference is induced across its ends?
Vab = __________ V
B) Find what would be the potential difference if the bar moved from east to west instead?
Vab' = __________ V