An Air-Filled Capacitor Has a Potential Difference Between the Plates

question 104

Multiple Choice

An air-filled capacitor has a potential difference between the plates of 80 V.If the charge on each of the plates of the capacitor has magnitude 8.0 μC,what is the electrical energy stored by this capacitor?

• A)640 µJ
• B)320 µJ
• C)50 nJ
• D)60 nJ
• E)30 pJ

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Definitions:

Disposable Income

Disposable income is the portion of an individual's or household's earnings left over for savings and expenditures after paying off income taxes.

Autonomous C

Autonomous consumption, the level of spending not influenced by current levels of income.

Induced C

Induced consumption, which refers to the spending by households that varies with income levels.

Induced Consumption

Induced consumption is the portion of consumer spending that increases with income, implying that as people earn more, they tend to spend more.