An Air-Filled Capacitor Has a Potential Difference Between the Plates $80 \mathrm {~V}$

question 43

Multiple Choice

An air-filled capacitor has a potential difference between the plates of $80 \mathrm {~V}$ . If the charge on each of the plates of the capacitor has magnitude $8.0 \mu \mathrm { C }$ , what is the electrical energy stored by this capacitor?

• A) \(50 \mathrm {~nJ}\)
• B) \(60 \mathrm {~nJ}\)
• C) \(320 \mu \mathrm { J }\)
• D) \(30 \mathrm { pJ }\)
• Е) \(640 \mu \mathrm { J }\)

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Definitions:

Broca's Area

A region in the frontal lobe of the dominant hemisphere (usually the left) involved in language production.

Speech Production

The process by which thoughts are translated into speech, involving several areas of the brain to produce and articulate words.

Parietal Lobe

A region of the brain involved in processing sensory information regarding the location of parts of the body as well as interpreting visual information and processing language and mathematics.

Cortex

The outer layer of the cerebrum in the brain, involved in complex functions such as thought, perception, and memory.