An Arrangement of 3 Charges Is Drawn Showing the Field

question 73

Multiple Choice

An arrangement of 3 charges is drawn showing the field lines. The first charge has 20 lines going into it. The second charge has 30 lines going out of it. If the net charge of the arrangement is zero, what is the field line situation for the third charge?

• A) 50 lines going out
• B) 50 lines going in
• C) 10 lines going out
• D) 10 lines going in
• E) 600 lines going out to infinity

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Definitions:

Marginal Value Curve

A curve showing how the value or utility of consuming an additional unit of a good changes as the quantity consumed changes.

Price

The sum of money anticipated, needed, or provided in exchange for something.

Oligopsony Market

A market form in which the number of buyers is small while the number of sellers in theory could be large, giving the buyers significant control over prices and terms.

Buyers

Individuals or entities that purchase goods or services for personal use or for resale.