MHT CET 2023 10th May Morning Shift | Magnetism and Matter Question 5 | Physics

According to Curie's law in magnetism, the correct relation is ( $$\mathrm{M}=$$ magnetization in paramagnetic sample, $$\mathrm{B}=$$ applied magnetic field, $$\mathrm{T}=$$ absolute temperature of the material, $$\mathrm{C}=$$ curie's constant)

$$\mathrm{M}=\frac{\mathrm{T}}{\mathrm{CB}}$$

$$\mathrm{M=\frac{C B}{T}}$$

$$\mathrm{C}=\frac{\mathrm{MB}}{\mathrm{T}}$$

$$\mathrm{C}=\frac{\mathrm{T}^2}{\mathrm{MB}}$$

MHT CET 2023 9th May Evening Shift

MCQ (Single Correct Answer)

-0

A thin rod of length $$L$$ has magnetic moment $$M$$ when magnetised. If rod is bent in a semicircular arc what is magnetic moment in new shape?

$$\frac{M}{L}$$

$$\frac{M}{\pi}$$

$$\frac{\mathrm{M}}{2 \pi}$$

$$\frac{2 \mathrm{M}}{\pi}$$

MHT CET 2023 9th May Morning Shift

MCQ (Single Correct Answer)

-0

The materials suitable for making electromagnets should have

high retentivity and high coercivity

low retentivity and low coercivity

high retentivity and low coercivity

low retentivity and high coercivity

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

The magnetic susceptibility of the material of a rod is 349 and permeability of vacuum $$\mu_0$$ is $$4 \pi \times 10^{-7}$$ SI units. Absolute permeability of the material of the rod in SI units is

$$4400 \times 10^{-7}$$

$$4200 \times 10^{-7}$$

$$4800 \times 10^{-7}$$

$$4600 \times 10^{-7}$$

PREVIOUS NEXT

MHT CET Subjects