MCQ
Curie temperature is the temperature above which
- AA paramagnetic material becomes ferromagnetic
- ✓A ferromagnetic material becomes paramagnetic
- CA paramagnetic material becomes diamagnetic
- DA ferromagnetic material becomes diamagnetic
✓
Answer
Correct option: B.
A ferromagnetic material becomes paramagnetic
b
(b) At Curie temperature, there is a change from ferromagnetic to paramagnetic behaviour. Above this temperature, the paramagentic substance obeys Curie Weiss law, even those resistances which are not ferromagnetic but only paramagnetic also obey Curie Weiss law above the Curie temperature only.
(b) At Curie temperature, there is a change from ferromagnetic to paramagnetic behaviour. Above this temperature, the paramagentic substance obeys Curie Weiss law, even those resistances which are not ferromagnetic but only paramagnetic also obey Curie Weiss law above the Curie temperature only.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The longest wavelength associated with Paschen series is : (Given $R_H=1.097 \times 10^7 \mathrm{SI}$ unit)
→In a Thomson set-up for the determination of e/m, electrons accelerated by $2.5$ $kV$ enter the region of crossed electric and magnetic fields of strengths $3.6 \times {10^4}V{m^{ - 1}}$ and $1.2 \times {10^{ - 3}}T$ respectively and go through undeflected. The measured value of $e/m$ of the electron is equal to
→Three identical vessels are filled with equal masses of three different liquids $A, B$ and $C$ $({\rho _A} > {\rho _B} > {\rho _C})$. The pressure at the base will be
→A container with insulating walls is divided into two equal parts by a partition fitted with a valve. One part is filled with an ideal gas at a pressure $P$ and temperature $T$, whereas the other part is completely evacuated. If the valve is suddenly opened, the pressure and temperature of the gas will be
→A motorcycle is going on an overbridge of radius $R$. The driver maintains a constant speed. As the motorcycle is ascending on the overbridge, the normal force on it
→Find the magnitude of magnetic field at point $p$ due to a semi - infinite wire given below
→The electric intensity due to a dipole of length $10\, cm$ and having a charge of $500\,\mu C$, at a point on the axis at a distance $20\, cm$ from one of the charges in air, is
→Seven identical circular planar disks, each of mass $M$ and radius $R$ are welded symmetrically as shown. The moment of inertia of the arrangement about the axis normal to the plane and passing through the point $P$ is:
→A dielectric slab of dielectric constant $K$ is placed between the plates of a parallel plate capacitor carrying charge $q$. The induced charge $q^{\prime}$ on the surface of slab is given by
→An automobile engine develops $100\ kW$ when rotating at a speed of $1800\ rev/min$. What torque does it deliver .......... $N-m$
→