Changing orientation and induced emf
A 10-Hz generator produces a peak emf of 40 V. (a) Write an expression for the emf as a function of time. Indicate your assumptions. (b) Determine the emf at the following times: 0.025 s, 0.050 s, 0.075 s, and 0.100 s. (c) Plot these emf-versustime data on a graph and connect the points with a smooth curve. What is the shape of the curve?
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