In the electrical utility industry, which pair of units is most commonly used to express power?

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Multiple Choice

In the electrical utility industry, which pair of units is most commonly used to express power?

Explanation:
Power is measured in watts, and in the electric utility world those watts are typically expressed in scaled forms: kilowatts for smaller quantities and megawatts for larger ones. Since 1 megawatt equals 1,000 kilowatts, using these two units covers the wide range of power levels encountered, from individual equipment to large generation and transmission. Units of voltage (kilovolts, gigavolts) describe electrical potential, not power, while resistance units (ohms) describe how much a component resists current, which isn’t power either. So kilowatts and megawatts are the standard pair for expressing power.

Power is measured in watts, and in the electric utility world those watts are typically expressed in scaled forms: kilowatts for smaller quantities and megawatts for larger ones. Since 1 megawatt equals 1,000 kilowatts, using these two units covers the wide range of power levels encountered, from individual equipment to large generation and transmission. Units of voltage (kilovolts, gigavolts) describe electrical potential, not power, while resistance units (ohms) describe how much a component resists current, which isn’t power either. So kilowatts and megawatts are the standard pair for expressing power.

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