Properties of a Magnet NDA Questions

NDA Physics

Properties of a Magnet MCQ Questions


1.
Which of the following does not exist?
A.
The monopole momentum increase due to increase at its distance from the field
B.
Magnetic monopole have constant value of monopole momentum
C.
Magnetic monopole does not exist
D.
Magnetic monopole exist
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ANSWER :
C. Magnetic monopole does not exist
2.
Which of the following instrument is used to measure magnetic Flux?
A.
Manometer
B.
Gravimeter
C.
Galvonometer
D.
Magnetometer
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ANSWER :
D. Magnetometer
3.
A bar magnet shows the properties of
A.
Permanent Magnet
B.
Temporary Magnet
C.
Electro -mechanical magnet
D.
Electromagnet
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ANSWER :
A. Permanent Magnet
4.
In a bar magnet, where is the magnetic force zero?
A.
At the north pole
B.
At the south pole
C.
At the center
D.
At the ends
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ANSWER :
C. At the center
5.
If a soft iron core is used in a solenoid, what is it called?
A.
Permanent magnet
B.
Electromagnet
C.
Inductor
D.
Transformer
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ANSWER :
B. Electromagnet
6.
The magnetic field produced by a solenoid increases by
A.
Increasing the length of the solenoid
B.
Decreasing the number of turns per unit length
C.
Increasing the number of turns per unit length
D.
Using a non-magnetic core
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ANSWER :
C. Increasing the number of turns per unit length