College Physics 10th Edition by Raymond Serway,Chris Vuille

تمرين 39

In a model AC generator, a 500-turn rectangular coil 8.0 cm by 20 cm rotates at 120 rev/min in a uniform magnetic field of 0.60 T. (a) What is the maximum emf induced in the coil (b) What is the instantaneous value of the emf in the coil at t = ( /32) s Assume the emf is zero at t = 0. (c) What is the smallest value of t for which the emf will have its maximum value