Mashaal Masha
Mashaal Masha
 Oct 15, 2022
0
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Choose the correct options for the following questions.
Most practical applications of electricity involve:
Difficulty: Easy
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A:
Changes at rest
B:
Charges in motion
C:
Electrons at rest
D:
Atoms in motion
The current that flows through the coil of a motor causes:
Difficulty: Easy
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A:
Its shaft to rotate
B:
Its shaft to revolve
C:
Its brushes to rotate
D:
Motor to move
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SI unit of current describes the flow of charge at the ratio of:
Difficulty: Easy
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A:
One ampere per second
B:
One coulomb per second
C:
One electron per second
D:
$6.25\times 10^{18}$ electrons per second
In case of metallic conductors, the charge carriers are:
Difficulty: Easy
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A:
Protons
B:
Electrons
C:
Antiprotons
D:
Positrons
The charge carriers in an electrolyte are:
Difficulty: Easy
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A:
Positive ions
B:
Negative ions
C:
Either a or b
D:
Both a and b
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In gases, the charge carriers are:
Difficulty: Easy
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A:
Electrons
B:
Positive ions
C:
Negative ions
D:
Both a and c
The conventional current is the name given to current due to flow of:
Difficulty: Easy
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A:
Positrons
B:
Positive charges
C:
Negative charges
D:
None
A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute is:
Difficulty: Easy
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A:
1 C
B:
0.5 C
C:
30 C
D:
2 C
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The positive charge moving in one direction is equivalent in all external affects to a:
Difficulty: Easy
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A:
Negative charge moving in the same direction
B:
Positive charge moving in the opposite direction
C:
Negative charge moving in the opposite direction
D:
Positive charge moving in the same direction
In a metal, the valence electrons are:
Difficulty: Easy
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A:
Attached to individual atoms
B:
Not attached to individual atoms
C:
Free to move within the metal
D:
Both a and c

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