A positive charge is moved against an electric field. Its P.E will :
Correct answer: A. Increases
- A. Increases
- B. Remains the same
- C. Decreases
- D. May increase or decrease depending on the magnitude of the charge
Explanation
The correct answer is Option A: Increases. When a positive charge is moved against the direction of an electric field, work is done on the charge to overcome the field's force, increasing its potential energy. Option B is incorrect because stationary charges do not change their potential energy. Option C is incorrect because moving in the same direction as the field decreases potential energy. Option D is incorrect because the change in potential energy is determined by the direction of movement, not the magnitude of the charge.
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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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