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Two concentric coils each of radius equa...

Two concentric coils each of radius equal to 2 pi cm are placed at right angles to each other 3 ampere and 4 ampere are the currents flowing in each coil respectively. The magnetic induction in `weber//m^(2)` at the centre of the coils will be
`( mu_(0) = 4 pi xx 10^(-7) Wb// A.m)`

A

`12xx10^-15`

B

`10^-5`

C

`5xx10^-5`

D

`7xx10^-5`

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