The SI unit of power is:
Correct answer: D. None of the above
- A. Horse power
- B. Joule
- C. Calorie
- D. None of the above
Explanation
Option D is correct. The SI unit of power is indeed the Watt (W). One watt is equal to one joule per second. It is the standard unit for measuring power in the International System of Units.
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About Measurements
Physical quantities are expressed with SI base and derived units, while measurement limits are described through accuracy, precision, absolute and percentage error, and significant figures. Dimensional analysis checks equations, derives relationships and detects inconsistent units, but it cannot determine numerical constants or distinguish quantities with identical dimensions.
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