If two point charges have the same sign, the electrostatic force between them is

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Multiple Choice

If two point charges have the same sign, the electrostatic force between them is

Explanation:
Two point charges interact via Coulomb’s law, F = k q1 q2 / r^2. The sign of the product q1 q2 determines the nature of the force. When the charges have the same sign, their product is positive, which means the force is repulsive: each charge experiences a push away from the other along the line connecting them. The magnitude decreases with distance as 1/r^2, but the direction is always away from the other charge for like charges. This is why the correct description is repulsive. The force is not zero (unless a charge is zero or they’re infinitely far apart) and not infinite.

Two point charges interact via Coulomb’s law, F = k q1 q2 / r^2. The sign of the product q1 q2 determines the nature of the force. When the charges have the same sign, their product is positive, which means the force is repulsive: each charge experiences a push away from the other along the line connecting them. The magnitude decreases with distance as 1/r^2, but the direction is always away from the other charge for like charges. This is why the correct description is repulsive. The force is not zero (unless a charge is zero or they’re infinitely far apart) and not infinite.

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