Magnetism and Matter Test

Result

Magnetism and Matter Test - 41

Score
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Weekly Quiz Competition

Question 1
4 / -1

The variation of magnetic susceptibility ( χ ) with absolute temperature T for a ferromagnetic material is

A

B

C

D

Solution
Question 2
4 / -1

The relative permeability (µ_r) of a ferromagnetic substance varies with temperature (T) according to the curve

A
A

B
B

C
C

D
D
Question 3
4 / -1

The basic magnetization curve for a ferromagnetic material is shown in figure. Then, the value of relative permeability is highest for the point

A
P

B
Q

C
R

D
S

Solution
Question 4
4 / -1

Which curve may best represent the current deflection in a tangent galvanometer

A
A

B
B

C
C

D
D

Solution
Question 5
4 / -1

Some equipotential surfaces of the magnetic scalar potential are shown in the figure. Magnetic field at a point in the region is

A
10^–4 T

B
2 × 10^–4 T

C
0.5 × 10^–4 T

D
None of these

Solution
Question 6
4 / -1

The χ^–1/T graph for an alloy of paramagnetic nature is shown in fig. The curie constant is

A
57 K

B
2.8 × 10^–3K

C
570 K

D
17.5 × 10^–3K

Solution
Question 7
4 / -1

The figure illustrates how B, the flux density inside a sample of unmagnetised ferromagnetic material, varies with B₀, the magnetic flux density in which the sample is kept. For the sample to be suitable for making a permanent magnet

A
OQ should be large, OR should be small

B
OQ and OR should both be large

C
OQ should be small and OR should be large

D
OQ and OR should both be small
Question 8
4 / -1

The variation of the intensity of magnetization (I) with respect to the magnetizing field (H) in a diamagnetic substance is described by the graph

A
OD

B
OC

C
OB

D
OA
Question 9
4 / -1

For ferromagnetic material, the relative permeability ( µ_r ) versus magnetic intensity (H) has the following shape

A

B

C

D

Solution
Question 10
4 / -1

The most appropriate magnetization M versus magnetizing field H curve for a paramagnetic substance is

A
A

B
B

C
C

D
D