An Example of a U

question 32

True/False

An example of a U.S. import would be the purchase of oil by U.S. companies from Saudi Arabia.

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Definitions:

Electromagnet

A type of magnet in which the magnetic field is produced by an electric current, typically wrapping a wire around a ferromagnetic core, which can be turned on and off with the current.

Proportional

A relationship between two quantities where a change in one results in a corresponding change in the other, often depicted mathematically by a constant ratio.

Compass Needle

A magnetized pointer free to align itself with Earth's magnetic field, used for navigation.

Permanent Magnets

Magnets that do not require an external force to maintain their magnetic properties.