Which of the following is unit of P.E:
Correct answer: D. All of these
- A. Electron volt
- B. Calorie
- C. Joule
- D. All of these
Explanation
Solution:- The different units of energy and their relation with SI-unit is as following:1 kWh = 3.6 MJ1 eV = 1.6 × 10-19 J1 calorie = 4.18 J1 erg = 10-7 J
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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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