In the figure, shown the magnetic induction at the centre of there arc due to th

Question

In the figure, shown the magnetic induction at the centre of there arc due to the current in portion AB will be

Options:

A . μ0ir

B . μ0i2r

C . μ0i4r

D . Zero

Answer: Option D
:
D
The magnetic induction at O due to the current in portion AB will be zero because it lies on ABwhen extended.

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