Force on a static charge q in uniform electric field E is:
Correct answer: A. qE
- A. qE
- B. -qE
- C. qE2
- D. -qE-2
Explanation
Option A is correct since an electric field exerts a force on charged particles. The magnitude of the electric field E produced by a charged particle at a point P is the electric force per unit positive charge it exerts on another charged particle located at that point. The actual force on a particle with charge q is given by F = qE.
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About Electrostatics
Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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