1.
Paramagnetic materials are:
A
Strongly repelled
B
Strongly attracted
C
Weakly attracted
D
Not affected
2.
In an unmagnetized material, magnetic domains are:
A
Randomly oriented
B
Fully aligned
C
Absent
D
Very large
3.
Magnetism produced in an unmagnetized material is called:
A
Permanent magnetism
B
Residual magnetism
C
Induced magnetism
D
Electric magnetism
4.
The region around a magnet where magnetic force is felt is called:
A
Electric field
B
Magnetic zone
C
Magnetic field
D
Force area
5.
An electromagnet works on the principle of:
A
Static electricity
B
Chemical reaction
C
Magnetic effect of current
D
Electrolysis
6.
Which material can be magnetized easily?
A
Copper
B
Plastic
C
Iron
D
Wood
7.
Iron filings are used to:
A
Measure magnetic field
B
Plot magnetic field lines
C
Increase magnetism
D
Destroy magnet
8.
Which property of a magnet causes it to attract iron?
A
Electric charge
B
Magnetic field
C
Gravity
D
Friction
9.
The closeness of magnetic field lines indicates:
A
Direction of field
B
Strength of field
C
Type of magnet
D
Mass of magnet
10.
Magnetic field lines always emerge from:
A
South pole
B
Center of magnet
C
North pole
D
All sides equally
11.
Steel is commonly used to make permanent magnets because it:
A
Is cheap
B
Has high retentivity
C
Is soft
D
Conducts electricity
12.
Which of the following is a non-magnetic material?
A
Iron
B
Steel
C
Nickel
D
Plastic
13.
Which of the following is a ferromagnetic material?
A
Copper
B
Iron
C
Silver
D
Glass
14.
Magnetic field lines never:
A
Intersect each other
B
Form closed loops
C
Exist outside magnet
D
Exist inside magnet
15.
A compass needle aligns itself along:
A
Electric field
B
Earth’s magnetic field
C
Gravitational field
D
Solar radiation
16.
Unlike magnetic poles will:
A
Repel each other
B
Have no effect
C
Attract each other
D
Destroy each other
17.
The strength of an electromagnet can be increased by:
A
Reducing current
B
Increasing number of turns
C
Using plastic core
D
Reducing turns
18.
Which material is suitable for making electromagnets?
A
Steel
B
Aluminum
C
Soft iron
D
Copper
19.
Ferromagnetic materials are:
A
Strongly attracted by magnets
B
Weakly attracted
C
Weakly repelled
D
Not affected
20.
Like magnetic poles will:
A
Attract each other
B
Repel each other
C
Disappear
D
Become neutral
21.
The direction of Earth’s magnetic field is from:
A
Geographic North to South
B
Geographic South to North
C
East to West
D
West to East
22.
Which are the two ends of a magnet called?
A
Electric poles
B
Positive and negative ends
C
Magnetic poles
D
Charged ends
23.
Which magnet can be switched ON and OFF?
A
Bar magnet
B
Permanent magnet
C
Electromagnet
D
Natural magnet
24.
Which application uses magnetism in data storage?
A
LCD screen
B
Hard disk
C
Calculator
D
Solar panel
25.
Domain theory explains magnetism due to:
A
Electric charges
B
Alignment of domains
C
Gravity
D
Heat energy
26.
Which material is commonly used for magnetic shielding?
A
Aluminum
B
Plastic
C
Soft iron
D
Glass
27.
The Earth behaves like:
A
An electric dipole
B
A bar magnet
C
An electromagnet
D
A solenoid
28.
Which magnet loses its magnetism easily?
A
Permanent magnet
B
Temporary magnet
C
Bar magnet
D
Earth magnet
29.
Magnetic shielding is used to:
A
Increase magnetic field
B
Reduce unwanted magnetic fields
C
Create electricity
D
Store data
30.
The magnetic field inside a magnet is directed from:
A
North to South
B
South to North
C
East to West
D
West to East
31.
Which of the following is diamagnetic?
A
Iron
B
Nickel
C
Copper
D
Cobalt
32.
Which device is used to detect the direction of magnetic field?
A
Ammeter
B
Voltmeter
C
Compass
D
Thermometer
33.
Which of the following is a use of permanent magnets?
A
Electric bell
B
Transformer
C
Loudspeaker
D
Electromagnetic crane
34.
Diamagnetic materials are:
A
Strongly attracted
B
Weakly attracted
C
Weakly repelled
D
Strongly magnetized
35.
Magnetic field lines enter the magnet at:
A
North pole
B
South pole
C
Center
D
Any point