JEE Main 2018 — Electromagnetic Induction Question with Solution
JEE Main 2018 (15 Apr Shift 2 Online)
Question
A copper rod of mass slides under gravity on two smooth parallel rails, with separation and set at an angle of with the horizontal. At the bottom, rails are joined by a resistance R. There is a uniform magnetic field normal to the plane of the rails, as shown in the figure. The terminal speed of the copper rod is:
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
From Faraday's law of electomagnetic induction,
Also,
At equilibrium
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 2018, 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.