Physics · 2013
JEE Main · 22 April 2013, Shift 1 · Q28
A current i is flowing in a straight conductor of length L. The magnetic induction at a point on its axis at a distance L/4 from its centre will be:
A current i is flowing in a straight conductor of length L. The magnetic induction at a point on its axis at a distance $\displaystyle \frac{\mathrm{L}}{4}$ from its centre will be :
Official answer
(1)
Zero
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JEE Main 2013 Physics question, with the answer from NTA’s final answer key. Where our answers come from.