JEE Main 2004 — Magnetic Effects of Current Question with Solution
JEE Main 2004
Question
A current I ampere flows along an infinitely long straight thin-walled tube, then the magnetic induction at any point inside the tube is
Choose an option
Show full solutionCorrect option: B
Correct answer
Bzero
Step-by-step explanation
Considering Ampere's loop (shown by dotted line), no current is enclosed by this loop. Therefore, the magnetic field will be zero inside the tube.
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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.