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Which unit is used for calculating the cost of consuming electrical power?

  1. Kilowatt

  2. Ampere

  3. Volt

  4. Watt

The correct answer is: Kilowatt

The unit commonly used for calculating the cost of consuming electrical power is the kilowatt. This unit represents 1,000 watts and is a measure of power, which directly relates to how energy is consumed over time. When looking at electricity bills, the cost is typically calculated based on the number of kilowatt-hours (kWh) consumed, making the kilowatt a crucial unit in understanding energy usage and associated costs. It reflects not just the amount of power being used at any given moment but also gives a clearer picture of overall consumption over time, which is vital for determining the total cost of electrical usage.