It Is Better to Send 10,000 KW of Electric Power

question 31

Multiple Choice

It is better to send 10,000 kW of electric power long distances at 10,000 V rather than at 220 V because:

• A)there is less heating in the transmission wires
• B)the resistance of the wires is less at high voltages
• C)more current is transmitted at high voltages
• D)the insulation is more effective at high voltages
• E)the iR drop along the wires is greater at high voltage

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Definitions:

Marginal Revenue

The surplus revenue collected from the sale of an extra unit of a good or service.

Demand Schedule

A table that lists the quantity of a good that consumers are willing and able to purchase at various prices over a specified period of time.

Marginal Revenue

The added earnings garnered from the sale of one more unit of a product or service.

Market Demand

The overall volume of a good or service that consumers in a market are ready and capable of buying across a range of prices.