12. (II) The moving rod in Fig. 21-12 is 12.0 cm long and
Chapter 21, Problem 12(choose chapter or problem)
12. (II) The moving rod in Fig. 21-12 is 12.0 cm long and is pulled at a speed of 15.0 cm/s. If the magnetic field is 0.800 T. calculate (a) the emf developed, and (b) the electric field felt by electrons in the rod.
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