Obtain an expression for the induced emf, Electrical Engineering

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Q. Consider a conducting loop of length l and width w, as shown in Figure, rotated about its axis (shown by the broken line) at a speed of ωm rad/s under the influence of a magnetic field B.

920_Obtain an expression for the induced emf.png

(a) Obtain an expression for the induced emf, assuming the angle θm is zero at t = 0 and θm = ωmt .

(b) If a resistor R is connected across terminals a-a , explainwhat happens and howthe principle of energy conservation is satisfied.


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