A steady current I flow through a long straight wire of radius 'a'. The current is uniformly distributed across its cross section. The ratio of a the magnetic fields due to the wire at distance a/4 and 3a respectively from the axis of the wire is
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Shift 27/05/2023 3:30 PM - 6:30 PM
A
3:4
B
4:3
C
2:3
D
1:4
Correct Answer
3:4
Detailed Explanation
.
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