FA 8.2.1 Flashcard 2 - Electromagnetism

Front

What are the ends of a magnet called?

Back

North and South poles

Front

What material are most cores made of?

Back

Iron

Front

What surrounds every magnet?

Back

A magnetic field

Front

What are the characteristics of the strongest electromagnet?

Back

100 turns on the coil, high current, iron core

Front

What are the components of an electromagnet?

Back

Battery, copper wire, and iron nail

Front

What is the definition of a magnetic field?

Back

A region around a magnet where magnetic forces can be detected.

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.

Front

How does increasing the number of turns in a coil affect the strength of an electromagnet?

Back

Increasing the number of turns increases the strength of the electromagnet.

Front

What role does the iron core play in an electromagnet?

Back

The iron core enhances the magnetic field produced by the coil.

Front

What happens to the magnetic field when the current in an electromagnet is increased?

Back

The magnetic field strength increases.