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An a.c. generator having a constant magn...

An a.c. generator having a constant magnetic field is conneted to a resistive load. What will be the effect of doulbling the speed of rotation on: (i) frequency of a.c. (ii) generated e.m.f. (iii) mechanical power required to rotate the generator ?

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As `e_(0) = NAB omega`, therefore, on doubling the speed of rotation : frequency `omega = 2 pi v` of a.c. will be doubled , generated e.m.f. `e_(0)` will be doubled and mechanical power required to rotate the generator will be doubled.
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