Find the correct combination regarding relative permeability and magnetic susceptibility of a paramagnetic substance.

The dependences of the magnetic susceptibility $$\left( \chi \right)$$ of a material with temperature (T) can be represented by $$\chi \propto \frac{1}{{T - \theta }},$$ where θ is the Curie-Weiss temperature. The plot of magnetic susceptibility versus temperature is sketched in the figure, as curves P, Q and R with curve Q having θ = 0. Which one of the following statements is correct?
Solid State Physics mcq question image

A

Curve R represents a paramagnet and Q a ferromagnetic field

B

Curve Q represents a ferromagnet and P an antiferromagnet

C

Curve R represents an antiferromagnet and Q a paramagnet

D

Curve R represents an antiferromagnet and Q a ferromagnet

In Paramagnetic oxygen analyzer, the expression for magnitude of force produced can be expressed as, F = C (K-KO), where K= magnetic susceptibility of surrounding gas and KO= magnetic susceptibility of sphere. C denotes which of the following?

A

Magnetic field strength

B

Magnetic gradient

C

Function of magnetic field strength and gradient

D

Magnetic flux

Consider the following pairs regarding magnetic substances. I. Ferromagnetic Substance: Nickel II. Diamagnetic Substance: Silver III. Paramagnetic Substance: Sodium Which among the above is/are NOT correctly matched?

A

Only III

B

Only II

C

Both I and III

D

All I, II and III are correct

The range of magnetic susceptibility and relative magnetic permeability for diamagnetic substances are

A

-1 ≥ χ > 0, 0 ≤ μ_r < 1

B

-1 ≤ χ < 0, 0 ≥ μ_r < 1

C

-1 ≥ χ > 1, 0 ≤ μ_r < 1

D

-1 ≤ χ < 0, 0 ≤ μ_r < 1

For paramagnetic material magnesium, the susceptibility at 300 K is 1.20 × 10-5 at what temperature will the susceptibility increases to 2.4× 10-5

A

600 K

B

300 K

C

120 K

D

150 K

The relation connecting magnetic susceptibility χ and relative permeability μr, is

A

χ = (μ_r + 1)

B

χ = (μ_r - 1)

C

${\rm{\chi }} = {\rm{\mu }}_{\rm{r}}^{ - 1}$

D

χ = 3(μ_r + 1)

The relative permeability of a medium is 0.050. What is its magnetic susceptibility?

A

500

B

501

C

49.9

D

499

The correct order of Magnetic susceptibility of Paramagnetic (χMP), diamagnetic (χMD), ferromagnetic (χMF) materials is

A

χ_MP > χ_MD > χ_MF

B

χ_MP > χ_MF > χ_MD

C

χ_MD > χ_MF > χ_MP

D

χ_MF > χ_MP > χ_MD

E

χMF < χMP < χMD

Some magnetic materials may be classified on the basis of 1. Susceptibility 2. Saturation 3. Spin arrangement 4. Nature of hysteresis loop 5. Domain structure 6. Critical temperature above which it behaves as a paramagnetic material Which of these can be used to distinguish between ferri and ferromagnetic materials?

A

1, 3 and 4 only

B

2, 3 and 6 only

C

3, 4 and 5 only

D

1, 2, 3, 4, 5 and 6

Magnetic susceptibility is negative for paramagnetic material.

A

True

B

False

Find the correct combination regarding relative permeability and magnetic susceptibility of a paramagnetic substance.

Related Questions