JEE Main 2015PhysicsMagnetic Properties of MatterEasyMCQ

JEE Main 2015 — Magnetic Properties of Matter Question with Solution

JEE Main 2015 (10 Apr Online)

Question

A 25 cm long solenoid has the radius 2 cm and 500 turns. It carries a current of 15 A. If it is equivalent to a magnet of the same size and magnetization M→ Magnetic momentvolume,then  M→ is:

Choose an option

Show full solutionCorrect option: B
Correct answer
B30000 A m-1

Step-by-step explanation



Volume = Al

Magnetization M→=magnetic monent Volume 

=No. of turns×Current×AreaVolume

=N I AA l

=NIl 

=500×15×10025

=60×500

=30×103

=30000 A m-1

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About this question

This is a previous-year question from JEE Main 2015, 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.