A metal rod moves at a constant speed v along two parallel metal rails connected by metal at one end as shown in the figure.  A magnetic field of magnitude B = 0.125 T is directed out of the ground.  (a) If the two rails are L = 25.0 cm apart and the speed of the rod is v = 38.0 cm / s, what is the electromotive force generated?  (b) If the resistance of the rod is 18.0 omega and the resistance of the two rails and the connecting wire is neglected, what is the current flowing through the rod?  (c) Find the rate of conversion to heat energy.  (d) What is the magnitude of the force that causes the bar to move to the left

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