JEE Main 2004 — Magnetic Effects of Current Question with Solution
JEE Main 2004
Question
A long wire carries a steady current. It is bent into a circle of one turn and the magnetic field at the centre of the coil is . It is then bent into a circular loop of turns. The magnetic field at the centre of the coil will be
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Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
.
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This is a previous-year question from JEE Main 2004, covering the Magnetic Effects of Current chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.