Consider a negative point charge moving along a straight-line path directly toward a stationary positive point charge. Which aspect(s) of the electric force on the negative point charge will remain constant as it moves?
Correct answer: A. Direction
- A. Direction
- B. Magnitude
- C. Both direction and magnitude
- D. Neither direction and magnitude
Explanation
As the negative charge is moving along a straight path towards the positive charge the direction of the charge does not change and hence remains constant. So option A is correct.
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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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