JEE Main 2026 — Magnetic Properties of Matter Question with Solution
JEE Main 2026 (04 April Shift 2)
Question
A solenoid has a core made of material with relative permeability . The magnetic field produced in the interior of solenoid is T. The magnetic intensity in SI units is . The value of is ______.
(Free space permeability SI units.)
(Free space permeability SI units.)
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
The magnetic field inside the solenoid is related to the magnetic intensity by the formula:
Rearranging for , we get:
Substituting the given values ( T, , and T m/A):
A/m
Comparing this with the given expression , we find:
Answer:
Rearranging for , we get:
Substituting the given values ( T, , and T m/A):
A/m
Comparing this with the given expression , we find:
Answer:
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This is a previous-year question from JEE Main 2026, covering the Magnetic Properties of Matter 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.