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A circular conductor of uniform resistan...

A circular conductor of uniform resistance per unit length, is connected to a battery of 4 V. The total resistance of the conductor is `4 ohm`. The net magnetic field at the centre of the conductor is

A

`mu_(0)/(2)`

B

`(8mu_(0))/(3)`

C

`2mu_(0)`

D

zero

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The correct Answer is:
D
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