What is the unit of Power?
Correct answer: A. watt
- A. watt
- B. Ampere
- C. Newton
- D. Joules
Explanation
Power is the rate at which work is done. It is defined as the work done per unit time.Mathematical Form:Power (P) = Work Done (W) / Time (t)The SI unit of power is the watt (W), which is defined as one joule per second (1 J/s).
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About Work and Energy
Work transfers energy when a force causes displacement, while kinetic energy, gravitational potential energy and power describe motion, position and the rate of energy transfer. The work-energy theorem links net work with change in kinetic energy, and efficiency accounts for energy losses rather than treating them as energy destruction.
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