What quantity is quantified by induction-type single-phase energy meters_______________?
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Answer: C. kWh
Explanation
Induction-type single-phase energy meters quantify electrical energy consumed in kilowatt-hours. They integrate electrical power over operating time intervals to track cumulative energy usage. The kilowatt-hour unit combines power in kilowatts with time measured in hours. Electrical power is the rate of energy consumption measured in kilowatts or watts. Induction meters use electromagnetic coils and rotating aluminum discs to measure energy. Time integration converts instantaneous power measurements into totalized billing units.
Electric utility companies bill residential customers based on total kilowatt-hours consumed monthly. Monitoring kilowatt-hour consumption helps homeowners and businesses manage their electricity expenses. Accurate energy metering is essential for fair commerce in electrical power distribution systems. Kilowatts measure instantaneous electrical power rather than cumulative energy consumption over time. Watt-hours represent a smaller energy unit, whereas kilowatt-hours are standard for utility billing. VAR measures reactive power in alternating current systems, not consumable electrical energy.
- Subject
- Engineering
- Category
- Electrical Engineering
- Topic
- —
- Difficulty
- medium
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