Umakant Kondapure, Collin Fernandes, Nipun Bhatia, Vikram Bathula and, Ketki Deshpande Solutions for Chapter: Magnetism, Exercise 2: Critical Thinking

The variation of magnetic susceptibility $\left(\chi \right)$ with absolute temperature $T$ for a ferromagnetic substance is represented by which graph.

The most appropriate magnetization $M$ versus magnetising field $H$ curve for a paramagnetic substance is

The graph between $\chi$ and $\frac{1}{T}$. for paramagnetic material will be represented by

A curve between saturation magnetization and temperature of a ferromagnetic sample is

A domain in a ferromagnetic substance is in the form of a cube of side length $1 \mu \mathrm{m}$. If it contains $8\times {10}^{10}$ atoms and each atomic dipole has a dipole moment of $9\times {10}^{-24} \mathrm{A} {\mathrm{m}}^2$, then magnetization of the domain is
 

A solenoid has a core of material with relative permeability $500$ and its windings carry a current of $1 \mathrm{A}$. The number of turns of the solenoid is $500 \mathrm{per} \mathrm{metre}$. The magnetization of the material is nearly
 

The basic magnetization curve for a ferromagnetic material is shown in figure. Then, the value of relative permeability is highest for the point

Two identical pieces of metal wires are used to make a circular loop and a square loop. Same current is passed through both the loops, the ratio of magnetic moment associated with the circular loop to that of the square loop is