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The magnetic field due to a straight lon...

The magnetic field due to a straight long conductor of uniform cross-section of radius a and carrying a steady current is represented by

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
D
Magnetic field inside the wire `B_("in")propr`
and out side the wire `B_("out")prop1/r`
So option (D) is correct
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