A paramagnetic substance of susceptibility 4 × 10 - 4 is placed in a magnetic field of 5 × 10 4 Am - 1 Calculate the intensity of magnetisation?

M → = χ . B → = 4 × 10 - 4 × 5 × 10 4 = 20 A m - 1

A paramagnetic substance of susceptibility 4 × 10 - 4 is placed in a magnetic field of 5 × 10 4 Am - 1 . Calculate the relative permeability?

μ r = 1 + χ μ r = 1 + 4 × 10 - 4 μ r = 1 . 0004

The magnetic susceptibility of paramagnetic substance at 300 K is 1 . 6 × 10 - 5 . Calculate its susceptibility at 400 K .

Magnesium is a paramagnetic substance and it follows, χ = C μ 0 T i.e χ . T = Constant In first case, χ . T = 1 . 6 × 10 - 5 . 300 In second case, 1 . 6 × 10 - 5 . 300 = χ . 400 χ = 1 . 2 × 10 - 5

E M B I B E

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 16

EASY

12th West Bengal Board

IMPORTANT

Earn 100

Draw magnetic field lines when a paramagnetic substance is placed in an external magnetic field. Which magnetic property distinguishes this behaviour of the field lines due to the two substances?

Important Questions on Magnetic Properties of Matter

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 17

Distinguish the magnetic properties of diamagnetic, paramagnetic and ferromagnetic substance in terms of susceptibility.

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 17

Distinguish the magnetic properties of diamagnetic, paramagnetic and ferromagnetic substance in terms of magnetic permeability

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 17

Distinguish the magnetic properties of diamagnetic, paramagnetic and ferromagnetic substance in terms of coercivity. Give one example of each of these materials.

HARD

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 18

What is Bohr magneton. Deduce its expression using Bohr's postulate.

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 11 - Magnetic Properties of Matter>EXERCISE 11>Q 1

A paramagnetic substance of susceptibility