1. You know the size and direction of the magnetic field. You know the velocity
ID: 1260283 • Letter: 1
Question
1. You know the size and direction of the magnetic field. You know the velocity of the bar and that this velocity is constant. You know the resistance of the wire. You know the initial depth of the bar in the magnetic field. You know the length of the bar. Find the following: The initial magnetic flux and the change in magnetic flux with respect to time. The direction and magnitude of the induced current. The force (magnitude and direction) on the bar caused by the induced current since it is in the magnetic field The required external force (magnitude and direction) needed to keep the velocity of the bar constant.Explanation / Answer
a) flux = 3
rate of chang of flux = 15
anticlockwise current.
Force acting = 2.25 N (-i) direction
Force needded = 2.25 N (+i) direction.
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