4. A metal rod moves with constant velocity along two parallel metal rails connected with a strip of metal at one side as shown in Figure. A magnetic field B = 0.35 T points out of the page. If the rails are separated by distance $L = 25$ cm and the speed of the rod is $v = 55$ cm/s, find a) the induced emf and direction of induced current (15pts) b) the amount of heat released in this system in 3 min if the rod has resistance of $18 \Omega$ and the rails have negligible resistance. (15pts)
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Therefore, we need to find it from the given information. Since the rails have negligible resistance, we can assume that the induced emf is due to the motion of the conductor in a magnetic field. The induced emf is given by the equation: emf = B * v * L where Show more…
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