Exhibit 6-20 Refer to Exhibit 6-20

question 70

Multiple Choice

Exhibit 6-20 Refer to Exhibit 6-20.If D, D' and D'' represents the demand curves for the only three consumers in a market, then the market quantity demanded at a price of $45 will be:

• A)50
• B)70
• C)90
• D)110
• E)130

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Definitions:

Delta-Connected

A method of connecting three components of an electrical circuit where each component is connected end-to-end to form a closed loop or triangle.

Phase Current

The amount of current flowing in the phase of a three-phase load or power supply.

Line Current

The current flow in the line supplying a three-phase load.

Apparent Power

A measure of the total power in an AC circuit, expressed in volt-amperes (VA), that combines both real power (measured in watts) and reactive power (measured in volt-amperes reactive, or VARs).