JEE Main 2022PhysicsMagnetic Properties of MatterHardMCQ

JEE Main 2022 — Magnetic Properties of Matter Question with Solution

JEE Main 2022 (28 Jun Shift 2)

Question

The space inside a straight current carrying solenoid is filled with a magnetic material having magnetic susceptibility equal to 1.2×10-5. What is fractional increase in the magnetic field inside solenoid with respect to air as medium inside the solenoid?

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Show full solutionCorrect option: A
Correct answer
A1.2×10-5

Step-by-step explanation

Given here, χ=1.2×10-5

Magnetic field inside the material in solenoid is B'=μ01+χni, here, i is current.

Now, magnetic field with air as medium inside solenoid is B=μ0ni.

So, fractional increase is B'-BB=χ=1.2×10-5

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About this question

This is a previous-year question from JEE Main 2022, 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.