Magnetic Effects of Current and Magnetism-Magnetic Susceptibility and Permeability (NEET Physics): Questions 1 - 5 of 8

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Question number: 1

» Magnetic Effects of Current and Magnetism » Magnetic Susceptibility and Permeability

MCQ▾

Question

For an isotropic medium B, µ 0, H and M are related as (where B, μ 0, H and M have their usual meaning in the context of magnetic material)

Choices

Choice (4) Response

a.

H=μ0(H+M)

b.

M=μ0(H+M)

c.

B=μ0(H+M)

d.

(BM)=μ0H

Question number: 2

» Magnetic Effects of Current and Magnetism » Magnetic Susceptibility and Permeability

MCQ▾

Question

A magnetizing field of 2×103ampm produces a magnetic flux density of 8π Tesla in an iron rod. The relative permeability of the rod will be,

Choices

Choice (4) Response

a.

10 2

b.

10°

c.

10 4

d.

10 1

Question number: 3

» Magnetic Effects of Current and Magnetism » Magnetic Susceptibility and Permeability

MCQ▾

Question

A magnetizing field of 1600 Am -1 produces a magnetic flux of 2.4 x 10 -5 weber in a bar of iron of area of cross-section 0.2 cm 2. Then,

(1) The magnetic permeability of the bar is 7.5 x 10 -4 TA -1 m

(2) The susceptibility of the bar is 596.1

(3) The magnetic permeability of the bar is 4.1 Wbm” 2

(4) The susceptibility of the bar is 496.1

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1 and 3 are correct

b.

1, 2 and 3 are correct

c.

2 and 4 are correct

d.

1 and 2 are correct

Question number: 4

» Magnetic Effects of Current and Magnetism » Magnetic Susceptibility and Permeability

MCQ▾

Question

Dimensional formula of μ 0 is-

Choices

Choice (4) Response

a.

MLT -2 A 2

b.

MLT -2 A -2

c.

MLT 2 A -2

d.

MLT 2 A 2

Question number: 5

» Magnetic Effects of Current and Magnetism » Magnetic Susceptibility and Permeability

Assertion-Reason▾

Assertion (Ꭺ)

The permeability of a ferromagnetic material dependent on the magnetic field.

Reason (Ꭱ)

Permeability of a material is a constant quantity.

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

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