An Air-Filled Capacitor Stores a Potential Energy of 6

question 40

Multiple Choice

An air-filled capacitor stores a potential energy of 6.00 mJ due to its charge. It is accidentally filled with water in such a way as not to discharge its plates. How much energy does it continue to store after it is filled? (The dielectric constant for water is 78 and for air it is 1.0006.)

• A) 0.077 mJ
• B) 468 mJ
• C) 0.040 mJ
• D) 6.00 mJ

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Definitions:

Inelastic

Describes a situation where a change in the price of a good or service has a relatively small effect on the quantity demanded or supplied.

Network Externalities

The effect that the number or size of users of a product or service has on the value of that product or service to other users.

Market Demand Curve

A graphical representation showing the relationship between the price of a good and the quantity of that good that all consumers in the market are willing to purchase at each price point.

Individuals' Demands

A reference to the total quantity of a good or service that an individual consumer is willing and able to purchase at various prices.