An Air-Filled Capacitor Carries Enough Charge to Store $6.00 \mathrm {~mJ}$

question 127

Multiple Choice

An air-filled capacitor carries enough charge to store $6.00 \mathrm {~mJ}$ of potential energy. It is then 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) 0.04 mJ
• D) 6.00 mJ

---

Definitions:

Secondary Effects

Unintended consequences of economic actions that may develop slowly over time as people react to events.

Rent Control

Government regulations that limit the amount landlords can charge for renting out a property and may also restrict the reasons for evicting tenants.

Economy Works

The systematic way in which economic activities are organized and conducted in a society to produce goods and services.

Scientist

A professional engaged in a systematic activity to acquire knowledge, often employing the scientific method in various fields.