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In the figure shown below each battery h...

In the figure shown below each battery has emf = 5 V. Then the magnetic field at P is

A

zero

B

`(10mu_(0))/(R_(1)(4pi)(.2))`

C

`(20mu_(0))/(R_(1)+R_(2)(.8pi))`

D

none of these

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The correct Answer is:
A
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