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:

Theory

A well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment.

Organized System

A structured set of components or entities that are interconnected and work together to achieve a particular goal or function.

Peer Review

A process used in academic and professional fields where work is evaluated by one or more people with similar competencies.

Hypothesis

A proposed explanation for a phenomenon, made as a starting point for further investigation.