Magnetism and Matter Test

Result

Magnetism and Matter Test - 37

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Weekly Quiz Competition

Question 1
4 / -1

A small rod of bismuth is suspended freely between the poles of strong electromagnet. It is found to arrange itself at right angles to the magnetic field. This observation establishes that bismuth is

A
Diamagnetic

B
Paramagnetic

C
Ferrimegnetic

D
Antiferromagnetic

Solution
Question 2
4 / -1

Which one of the following is a non magnetic substance?

A
Iron

B
Nickel

C
Cobalt

D
Brass
Question 3
4 / -1

Curie-Weiss law is obeyed by iron at a temperature

A
Below Curie temperature

B
Above Curie temperature

C
At Curie temperature only

D
At all temperatures
Question 4
4 / -1

The magnetic susceptibility of any paramagnetic material changes with absolute temperature T as

A
Directly proportional to T

B
Remains constant

C
Inversely proportional to T

D
Exponentially decaying with T
Question 5
4 / -1

When a piece of a ferromagnetic substance is put in a uniform magnetic field, the flux density inside it is four times the flux density away from the piece. The magnetic permeability of the material is

A
1

B
2

C
3

D
4

Solution
Question 6
4 / -1

Which of the following is diamagnetic

A
Aluminum

B
Quartz

C
Nickel

D
Bismuth
Question 7
4 / -1

If a ferromagnetic material is inserted in a current carrying solenoid, the magnetic field of solenoid

A
Largely increases

B
Slightly increases

C
Largely decreases

D
Slightly decreases
Question 8
4 / -1

In the hysteresis cycle, the value of H needed to make the intensity of magnetization zero is called

A
Retentivity

B
Coercive force

C
Lorentz force

D
None of these
Question 9
4 / -1

Among the following properties describing diamagnetism identify the property that is wrongly stated

A
Diamagnetic materials do not have permanent magnetic moment

B
Diamagnetism is explained in terms of electromagnetic induction

C
Diamagnetic materials have a small positive susceptibility

D
The magnetic moment of individual electrons neutralize each other
Question 10
4 / -1

Susceptibility of ferromagnetic substance is

A
> 1

B
< 1

C
0

D
1

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Re-Attempt Weekly Quiz Competition

Magnetism and Matter Test - 37

Result

Magnetism and Matter Test - 37

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SHARING IS CARING

Question 1

Diamagnetic

Paramagnetic

Ferrimegnetic

Antiferromagnetic

Solution

Question 2

Iron

Nickel

Cobalt

Brass

Question 3

Below Curie temperature

Above Curie temperature

At Curie temperature only

At all temperatures

Question 4

Directly proportional to T

Remains constant

Inversely proportional to T

Exponentially decaying with T

Question 5

1

2

3

4

Solution

Question 6

Aluminum

Quartz

Nickel

Bismuth

Question 7

Largely increases

Slightly increases

Largely decreases

Slightly decreases

Question 8

Retentivity

Coercive force

Lorentz force

None of these

Question 9

Diamagnetic materials do not have permanent magnetic moment

Diamagnetism is explained in terms of electromagnetic induction

Diamagnetic materials have a small positive susceptibility

The magnetic moment of individual electrons neutralize each other

Question 10

> 1

< 1

0

1

User

Question Analysis

My Perfomance

Score

-

Rank

-

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