JEE Main 2026 — Magnetic Effects of Current Question with Solution
JEE Main 2026 (02 April Shift 1)
Question
C charge moving with velocity m/s in the region of magnetic field T. The magnitude of force acting on it is N. The value of is _______.
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Show full solutionCorrect answer: 171
Correct answer
171
Step-by-step explanation
The magnetic force acting on a moving charge is given by .
Given:
Calculating the cross product :
The magnitude of is:
The magnitude of the force is:
Comparing this with the given expression , we get:
Answer:
Given:
Calculating the cross product :
The magnitude of is:
The magnitude of the force is:
Comparing this with the given expression , we get:
Answer:
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This is a previous-year question from JEE Main 2026, 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.