JEE Main 2004 — Magnetic Effects of Current Question with Solution
JEE Main 2004
Question
The magnetic field due to a current carrying circular loop of radius at a point on the axis at a distance of from the centre is . What will be its value at the centre of the Loop?
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Show full solutionCorrect option: A
Correct answer
A
Step-by-step explanation
Using formula , we get
At the centre of the coil, and
Using equation (i)
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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.