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Two concentric circular loops of radii r...

Two concentric circular loops of radii` r_(1)` and `r_(2)` carry clockwise and anticlockwise currents `i_(1)` and `i_(2)`. If the centre is a null point, `i_(1)//i_(2)` must be equal to

A

`r_2 // r_1`

B

`r_2^2 // r_1^2`

C

`r_1^2 // r_2^2`

D

`r_1//r_2`

Text Solution

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The correct Answer is:
D
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