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Which of the following is a field force rather than a contact force?

AFriction between two surfaces
BTension in a stretched string
CElectrostatic force between two charges
DNormal force exerted by a table
Answer & Solution
Correct answer: C. Electrostatic force between two charges
Electrostatic force acts without physical contact, so it is a field (range) force. Friction, tension, and normal force all require contact or attachment between bodies.
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