JEE Main · 2024 · 06 Apr 2024 · Shift 2 · Magnetic Properties of Matter

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Consider a ferromagnetic material :
Assertion (A) : The individual atoms in a ferromagnetic material possess a magnetic dipole moment and interact with one another in such a …

A short bar magnet placed with its axis at $30^{\circ }$ with an external field of 800 Gauss, experiences a torque of 0.016 N.m. The work done in moving it from most stable to most unstable position is $\alpha \times 10^{-3}\mathrm{J}$. The value of $\alpha$ is ______.

A solenoid has a core made of material with relative permeability 400. The magnetic field produced in the interior of solenoid is 1.0 T. The magnetic intensity is SI units is $\alpha \times 10^5$. The value of $\alpha$ is ______. (Free space permeability …

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason(R).
Assertion (A) : Magnetic monopoles do not exist.
Reason (R) : Magnetic field lines are continuous and form closed loops.
In the light of the above statements, choose the most …

The percentage increase in magnetic field (B) when space within a current carrying solenoid is filled with magnesium (magnetic susceptibility ${\chi }_{mg}=1.2\times 10^{-5}$) is:

Match List-I with List-II:
List-I: (A) Magnetic induction (B) Magnetic intensity (C) Magnetic flux (D) Magnetic moment
List-II: (I) Ampere meter² (II) Weber (III) Gauss (IV) Ampere/meter
Choose the correct answer from the options given below: