The Main Difference Between the 78XX and 79XX Series Regulators

question 23

Multiple Choice

The main difference between the 78XX and 79XX series regulators is that

• A)the 78XX series is fixed and the 79XX series is adjustable.
• B)the 78XX series is adjustable and the 79XX series is fixed.
• C)the 78XX series provides a negative fixed output voltage and the 79XX series provides a positive fixed output voltage.
• D)the 78XX series provides a positive fixed output voltage and the 79XX series provides a negative fixed output voltage.

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Definitions:

Own-price Elasticity

a measure of how much the quantity demanded of a good or service changes in response to a change in its price.

Number of Substitutes

The quantity of alternative products or services that consumers can choose from in a market.

Absolute Value

A number’s distance from zero on the number line, without considering direction; always a positive value or zero.

Price Elasticity

A measure of how the quantity demanded of a good changes in response to a change in its price.