4. What is power? Define its unit.
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Answer:
In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. ... Power is a scalar quantity
Explanation:
SI unit: watt (W)
In SI base units: kg⋅m2⋅s−3
Derivations from other quantities: P = E/t; P = F·v; P = V·I; P = τ·ω
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Answer:
power in an energy which cannot be made or destroyed it can only transfer form one form to another
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