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In the figure shown two loops ABCD &EFGH...

In the figure shown two loops ABCD &EFGH are in the same plane. The smaller loop carries time varying current I=bt, where b is a positive constant and t is time. The resistance of the smaller loop is r and that of the larger loop is R : (Neglect the self inductance of large loop ). The magnetic force on the loop EFGH due to loop ABCD is `(mu_(0)^(2)Iab)/(xpi^(2)R) ln""(4)/(3)` . Find the value of x.

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