Coulomb’s Law (Forces Between Two Point Charges, Forces Between Multiple Charges... ) NEET Questions

Physics - Electrostatics

Coulomb’s Law (Forces Between Two Point Charges, Forces Between Multiple Charges... ) MCQ Questions


13.
The electrostatic force between two charges is F. If both charges are doubled and the distance between them is also doubled, the force will be:
A.
F/2
B.
2F
C.
4F
D.
F
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ANSWER :
D. F
14.
Two charges q1 and q2 are placed 1 m apart. If the force between them is 9 N, what will be the force if the distance is reduced to 0.5 m?
A.
36 N
B.
18 N
C.
72 N
D.
9 N
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ANSWER :
A. 36 N
15.
The force between two charges is inversely proportional to:
A.
Square of the distance between them
B.
Distance between them
C.
Cube of the distance between them
D.
None of these
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ANSWER :
A. Square of the distance between them
16.
According to Coulomb’s law, the force between two point charges is inversely proportional to:

NEET - 2015

A.
Charge of each particle
B.
Distance between them
C.
Permittivity of the medium
D.
Square of the distance between them
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ANSWER :
D. Square of the distance between them
17.
The principle of superposition states that the net force on a charge is:
A.
The vector sum of all individual forces acting on it
B.
The scalar sum of all individual forces
C.
Always zero
D.
Always maximum
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ANSWER :
A. The vector sum of all individual forces acting on it
18.
Which of the following is true for electrostatic forces?
A.
They are conservative in nature
B.
They depend on the medium between charges
C.
They follow inverse square law
D.
All of the above
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ANSWER :
D. All of the above