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Magnetism MCQ Class 8. We covered all the Magnetism MCQ Class 8 in this post for free so that you can practice well for the exam.
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Magnetism MCQ Class 8 for Students
Quick Quiz
Each molecule in a magnetic material acts like a:
a. Miniature magnet
b. Basic magnet
c. Magnetic molecule
d. All of these
Option d – All of these
The molecular explanation of magnetism was introduced by:
a. Weber
b. Coulomb
c. Ewing
d. Oersted
Option c – Ewing
The maximum level a material can be magnetized is termed:
a. Magnetization
b. Magnetic saturation
c. Magnetic unsaturation
d. None of these
Option b – Magnetic saturation
A material that retains the alignment of its internal magnets after being magnetized is:
a. Soft iron
b. Steel
c. Brass
d. Copper
Option b – Steel
Steel is commonly used to manufacture:
a. Temporary magnets
b. Electromagnets
c. Permanent magnets
d. None of these
Option c – Permanent magnets
The material in which the molecular alignment is easily disturbed after magnetization is:
a. Soft iron
b. Steel
c. Brass
d. Copper
Option a – Soft iron
Soft iron is primarily used in making:
a. Permanent magnets
b. Electromagnets
c. Temporary magnets
d. Both b and c
Option d – Both b and c
The two ends of a magnet have:
a. Equal strength
b. Unequal strength
c. North pole is stronger than south pole
d. None of these
Option a – Equal strength
A magnet can also be referred to as a:
a. Magnetic dipole
b. Magnetic monopole
c. Magnetic tripole
d. None of these
Option a – Magnetic dipole
Magnetic properties of a magnet can be lost by:
a. Striking it
b. Applying heat
c. Hammering
d. All of these
Option d – All of these
Substances that are pushed away by a powerful magnet include:
a. Bismuth
b. Copper
c. Cobalt
d. a and b
Option d – a and b
The ends of a magnet are locations where:
a. North and south poles of molecules are unpaired
b. North and south poles of molecules are bonded
c. Magnetic molecules separate into poles
d. a and c
Option d – a and c
The force with which a magnetic pole can attract or repel another pole is called:
a. Pole capacity
b. Pole strength
c. Pole force
d. All of these
Option b – Pole strength
The strength of the north and south poles of a magnet are:
a. Equal
b. Not equal
c. North is stronger than south
d. None of these
Option a – Equal
According to Coulomb’s inverse square law, magnetic behavior is based on:
a. Actual isolated poles
b. Imagined isolated magnetic poles
c. Both options
d. None of these
Option b – Imagined isolated magnetic poles
We covered all the magnetism MCQ class 8 above in this post for free so that you can practice well for the exam.
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