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Unformatted text preview: t NAB ω ε sin = is useful to write it this way: It is useful to write it this way: t o sin = , where NAB Max o = = emember that as the units of [rad/s], and = where in [Hz]. Remember that has the units of [rad/s], and f π 2 , where f is in [Hz]. The emf produced by the coil is a sinusoidal function, and therefore changes sign as a function of time. g ) ( t o + otice: The emf *Notice: The emf oscillates between its positive and t o − negative maximum value. Since the emf changes sign as a function of time, so does the current, I : This is an example of an AC (Alternating Current) Generator ....
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 Spring '08
 BLACKMON
 Physics, Current, Alternating Current, ε, motional emf, true motional emf

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