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A spiral loop has inner radius 10 cm and...

A spiral loop has inner radius 10 cm and outer radius 20 cm and carries current 1A in each turn. The total no. of turn in loop is 100. A small rectangular loop of area `2 cm^(2)` carries current 0.05 A is placed at the centre of loop. If magnitude of potential energy of rectangular loop is `(x mu_(0)Ln2)/(400)J`. then find out the value of x

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