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A small current carrying loop having cur...

A small current carrying loop having current i is placed in the plane of the paper as shown Anothersemicircular loop having current `i_0` is placed concentrically in the same plane as that of the small loop, the radius of semicircular loop being `R(Rgt gt a)`. Find the force applied (in newton)by the smaller ring on the bigger ring. `(Given R=1m, i=i_0=40/(mu_0)A, a=0.1m)`

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