JEE Main 2025 — Magnetic Effects of Current Question with Solution
JEE Main 2025 (7 Apr Shift 1)
Question
Uniform magnetic fields of different strengths and ), both normal to the plane of the paper exist as shown in the figure. A charged particle of mass m and charge q , at the interface at an instant, moves into the region 2 with velocity and returns to the interface. It continues to move into region 1 and finally reaches the interface. What is the displacement of the particle during this movement along the interface?
(Consider the velocity of the particle to be normal to the magnetic field and )
(Consider the velocity of the particle to be normal to the magnetic field and )
Choose an option
Show full solutionCorrect option: D
Correct answer
D
Step-by-step explanation
As is to , so charge particle will move in circular path, whose radius is given by
Starting point
Ending point
Net displacement
Starting point
Ending point
Net displacement
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This is a previous-year question from JEE Main 2025, 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.