A. You are given a straight piece of conductor that is 4.7 cm long and moves in

Question

A. You are given a straight piece of conductor that is 4.7 cm long and moves in a region of uniform magnetic field of 2.1 T along the z-direction. If the conductor is oriented along thex-axis and moves in the y-direction with a velocity of 4.0 m/s, find the magnitude of induced voltage that will be produced between the ends of this moving conductor.

B. We move a square loop of wire 2.5 cm on a side into a region of uniform magnetic field of 2.0 T with the plane of the loop perpendicular to the direction of the field. The loop is moving with a constant velocity of 1.9 m/s into the field region starting from a point outside the field. If the loop has a resistance of 8 ?, find the force on the loop as it just enters the magnetic field region. (Enter the magnitude.)

Explanation / Answer

A) e = B*L*v = 2.1*0.047*4 = 0.3948 V....
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B) F = B*i*L..
i = e/R = B*L*v/R   = 2*0.025*1.9/8 = 0.011875 A....

F = 2*0.011875*0.025 = 5.94*10^-4 N

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