State whether the following statements are true or false:

Power is defined as the amount of work completed in a given amount of time and Average power is defined as the total amount of work or energy converted in a given amount of time.

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True

False

answer is A.

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Detailed Solution

The given statement is true.
Concept: Power is the measurement of the rate at which work is performed. It is dependent on the work done. Its definition is the rate of energy conversion in a given amount of time. One joule per second (J/s) is equal to one Watt (W) in its International System of Units. It is scalar.
Mathematically it can be expressed as,

The average power is the ratio of the overall work completed in the total amount of time.
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Note that the average and instantaneous power become equal if the work is done at a constant rate.
Thus, the given statements are true.
Hence, the answer is option 1.

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