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A and B are two concentric circular cond...

`A` and `B` are two concentric circular conductors of centre `O` and carrying currents `i_(1)` and `i_(2)` as shown in the adjacent figure. If ratio of their radii is `1:2` and ratio of the flux densities at `O` due to `A` and `B` is `1:3`, then the value of `i_(1)//i_(2)` is

A

`1/6`

B

`1/4`

C

`1/3`

D

`1/2`

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The correct Answer is:
A
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