a Part (a) Express the maximum emf induced in the loop, ? 0 , in terms of A , ?

Question

a

Part (a) Express the maximum emf induced in the loop, ?0, in terms of A, ?, B, and N.

Part (b) Calculate the numerical value of ?0 in V.

Problem 10: A coil of area A = 0.25 m2 is rotating with angular speed ? = 390 rad/s with the axis of rotation perpendicular to a B = 0.45 T magnetic field. The coil has N = 950 turns.

Randomized VariablesA = 0.25 m2
? = 390 rad/s
B = 0.45 T
N = 950 turns

Part (a) Express the maximum emf induced in the loop, ?0, in terms of A, ?, B, and N.

Part (b) Calculate the numerical value of ?0 in V.

Explanation / Answer

a) flux = N A B cos wt

emf = -dflux/dt = N A B w sin wt

so emf max = N A B w

b) 950*0.25*0.45*390= 41681 V

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