A long straight wire of circular cross-section (radius a) carries a steady current I and…
Physics · Class 12 · CBSE — Moving Charges and Magnetism
A long straight wire of circular cross-section (radius a) carries a steady current I and the current I is uniformly distributed across this cross-section. Which of the following plots represents the variation of the magnitude of magnetic field B with distance centre of the wire?
Answer
(C)
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