The voltage V produced by an ac generator is sinusoidal.
Chapter 6, Problem 91(choose chapter or problem)
The voltage V produced by an ac generator is sinusoidal. As a function of time, the voltage V is V1t2 = V0 sin12pft2 where f is the frequency, the number of complete oscillations (cycles) per second. [In the United States and Canada, f is 60 hertz (Hz).] The power P delivered to a resistance R at any time t is defined as P1t2 = 3V1t2 4 2 R (a) Show that P1t2 = V0 2 R sin2 12pft2. (b) The graph of P is shown in the figure. Express P as a sinusoidal function
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