Physics · 2025
JEE Main · 24 January 2025, Shift 2 · Q36
A long straight wire of a circular cross-section with radius ' a ' carries a steady current I. The current I is uniformly distributed across this…
A long straight wire of a circular cross-section with radius ' a ' carries a steady current I . The current I is uniformly distributed across this cross-section. The plot of magnitude of magnetic field $\displaystyle B$ with distance $\displaystyle r$ from the centre of the wire is given by
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JEE Main 2025 Physics question, with the answer from NTA’s final answer key. Where our answers come from.