______ is the "Work done in moving a unit charge between two points in an electric circuit"?
Correct answer: A. Potential difference
- A. Potential difference
- B. Current
- C. Power
- D. Resistence
Explanation
Potential difference is the work done per unit charge in moving charge between two points, expressed as V = W/Q. Current measures charge flow per unit time, while power measures the rate of doing electrical work.
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Everyday physics explains motion, force, work, power, pressure, heat, light, sound and electricity through familiar devices and natural events. Topics include simple machines, friction, expansion, reflection and refraction, lenses, household circuits, electrical safety and magnetism, with mass distinguished from weight and heat distinguished from temperature.
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