9
lesson pretestMultiple Choice

Pretest

Question 9 • Physics

What is the unit for electrical power?

Answer
A
joule (J)
B
volt (V)
C
kilowatt-hour (kWh)
D
watt (W)

Explanation

Electrical power is measured in watts (W), which describe the rate at which electrical energy is transferred or used. A joule and a kilowatt-hour are units of energy, while a volt measures electrical potential difference.

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