Watt-hour measures _.
Correct answer: B. Electrical energy
- A. Current
- B. Electrical energy
- C. Power
- D. Voltage
Explanation
A watt-hour (Wh) is a unit of energy; it's a way to measure the amount of work performed or generated. Household appliances and other electrical devices perform work," which requires energy in the form of electricity.
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About Current Electricity
Steady current relates charge flow to potential difference, resistance and resistivity, including how temperature changes a conductor's resistance. Sources with internal resistance have terminal voltage below their emf when delivering current, and maximum power output occurs under a specific load condition rather than at zero resistance.
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