Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Easy-Class 12
Two point charges q1 and q2 are placed at a distance r apart. If the magnitudes of both charges are doubled and the distance between them is halved, how does the force between them change?
A
The force becomes 16 times greater.
B
The force becomes 4 times greater.
C
The force remains unchanged.
D
The force becomes 8 times greater.
Correct Answer
Option A
Detailed Explanation
According to Coulomb's law, the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them. Doubling both charges makes the product 4 times greater, and halving the distance makes the force 4 times greater due to the inverse square law, resulting in a total increase by a factor of 16.
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