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A square wire frame (initially current i...

A square wire frame (initially current is zero) with side `a` and `a` straight conductor carrying a constant current `I` are located in the same plane (figure).The inductance and the resistance of the frame are equal to `L` and `R` respectively.The frame was turned through `180^(@)` about the axis `OO'` separated from the current carrying conductor by a distance `b=2a`.The total electric charge having flown through the frame if `i=0` at `t=0` in the loop is equal to `(mu_(0)aI)/(2piR)lnx`.Find the value of `x`.

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