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The radius of each of two mutually perpe...

The radius of each of two mutually perpendicular concentric coils is `2pi` cm. Magnetic induction at the centre of the coils is `10^(-4)Wb.A^(-1)`. If the current in the first coil be 8 A then what is the value of cuurent (in A) in the second coil? `[mu_(0)=4pixx10^(-7)Wb.A^(-1).m^(-1)]`

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