JEE Main 2021 — Electromagnetic Induction Question with Solution
JEE Main 2021 (27 Aug Shift 1)
Question
A bar magnet is passing through a conducting loop of radius with velocity The radius of the bar magnet is such that it just passes through the loop. The induced e.m.f. in the loop can be represented by the approximate curve:
Choose an option
Show full solutionCorrect option: C
Step-by-step explanation
As Magnet is approaching toward the loop magnetic flux increases and Rate of increment of flux also increases so emf increases with time
at this moment emf is maximum and negative
Magnet is in middle of coil, at this moment emf is equal to zero
Now again flux start changing however polarity of emf get reverse
At this moment emf is again maximum
emf again become zero
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Electromagnetic Induction chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2021, covering the Electromagnetic Induction 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.