The Plates of a Parallel-Plate Capacitor Are Maintained with Constant

question 44

Multiple Choice

The plates of a parallel-plate capacitor are maintained with constant potential by a battery as they are pulled apart.During this process,the amount of charge on the plates

• A)must increase.
• B)must decrease.
• C)must remain constant.
• D)could either increase or decrease.There is no way to tell from the information given.

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Definitions:

Consumer Surplus

The difference between the maximum price consumers are willing to pay for a good or service and the actual price they do pay.

Marginal Utility

The additional satisfaction or utility gained from consuming one more unit of a good or service.

Total Utility

The total satisfaction received from consuming a certain amount of goods or services.

Marginal Utility

The change in satisfaction or benefit derived by consuming an additional unit of a good or service.