By Using a Compass to Measure the Magnetic Field Direction

question 22

Multiple Choice

By using a compass to measure the magnetic field direction at various points adjacent to a long straight wire, you can show that the wire's magnetic field lines are

• A) straight lines in space that go from one magnetic charge to another.
• B) straight lines in space that are parallel to the wire.
• C) straight lines in space that are perpendicular to the wire.
• D) circles that have their centers on the wire and lie in planes perpendicular to the wire.
• E) circles that have the wire lying along a diameter of the circle.

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Definitions:

Demand Curves

A graphical representation of the relationship between the price of a good and the quantity demanded by consumers, typically downward sloping, indicating that demand decreases as price increases.

Supply Curve

The Supply Curve is a graphical representation showing the relationship between the price of a good or service and the quantity of that good or service that a supplier is willing and able to supply.

Marginal Cost Curve

A graph that shows the cost of producing one more unit of a good or service at each level of production.

Average Variable Cost

The cost per unit of varying inputs in the production process, calculated by dividing total variable costs by the quantity of output produced.