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AB and CD are long straight conductor, d...

`AB` and `CD` are long straight conductor, distance `d` apart, carrying a current `I`. The magnetic field at the midpoint of `BC` is

A

`(-mu_(0)I)/(2pid)hatk`

B

`(-mu_(0)I)/(pid)hatk`

C

`(-mu_(0)I)/(4pid)hatk`

D

`(-mu_(0)I)/(8pid)hatk`

Text Solution

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The correct Answer is:
B
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