Which statement describes the electric potential difference between two points in the electric field of charge Q?
Correct answer: C. The work done in moving a test charge between points divided by the magnitude of the test charge.
- A. The difference of electric field between the points per unit charge.
- B. The ratio of the power dissipated between the points to the mass of charge.
- C. The work done in moving a test charge between points divided by the magnitude of the test charge.
- D. The force required to move a unit positive charge between the points per unit charge.
Explanation
This question is simply revising how the electric potential is defined as it is work done per unit charge in moving that charge from one place to the other in the electric field.All other options are not the definitions of electric potential.
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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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