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A rectangular conducting loop B has its side lengths equal to b and a ( lt lt b). In the plane of the loop there is another very small loop A in shape of a square of side length x. Loop A is placed symmetrically with respect to B with its centre at a distance a from one of its longer side (see Figure). There is a current (i) in loop A which is made to increase at a constant rate of(di)/(dt) = alpha As^(–1). Calculate the emf induced in the bigger loop. |
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