A paramagnetic sample shows a net magnetisati | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) According to Curie's Law for paramagnetic materials,the magnetic susceptibility $\chi$ is inversely proportional to the absolute temperature $T$,i

Vedclass · Accepted Answer

$0.75$

Vedclass · Answer

(B) According to Curie's Law for paramagnetic materials,the magnetic susceptibility $\chi$ is inversely proportional to the absolute temperature $T$,i.e.,$\chi \propto \frac{1}{T}$.The magnetization $M$ is related to the external magnetic field $B$ and susceptibility $\chi$ by the relation $M = \chi H$,where $H = \frac{B}{\mu_0}$. Since $\mu_0$ is constant,we can write $M \propto \frac{B}{T}$.Given:$M_1 = 6 \, A/m$,$B_1 = 0.4 \, T$,$T_1 = 4 \, K$$M_2 = ?$,$B_2 = 0.3 \, T$,$T_2 = 24 \, K$Using the ratio $\frac{M_1}{M_2} = \frac{B_1 / T_1}{B_2 / T_2} = \frac{B_1 T_2}{B_2 T_1}$:$\frac{6}{M_2} = \frac{0.4 	imes 24}{0.3 	imes 4}$$\frac{6}{M_2} = \frac{9.6}{1.2} = 8$$M_2 = \frac{6}{8} = 0.75 \, A/m$.

Similar Questions

Magnetic susceptibility of a paramagnetic substance is

The meniscus of a liquid contained in one of the limbs of a $U-$tube is placed between the poles of an electromagnet with the meniscus in line with the field. The liquid is seen to rise in the limb by a small amount. This indicates that the liquid is:

The magnetic susceptibility of an ideal diamagnetic substance is

Needles $N_{1}$,$N_{2}$,and $N_{3}$ are made of a ferromagnetic,a paramagnetic,and a diamagnetic substance,respectively. $A$ magnet when brought close to them will

$A$ uniform magnetic field,parallel to the plane of the paper,exists in space and is initially directed from left to right. When a bar of soft iron is placed in the field parallel to it,the lines of force passing through it will be represented by:

Vedclass Test Series

Exam Paper Generator

Online Exam Module