Electromagnetic Flashcard - Brain Pop

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It can be turned on and off.

Front

How do electromagnets differ from regular magnets?

Back

Electromagnets can be turned on and off, their polarity can be reversed, and their strength can be changed.

Front

Where does a magnetic field occur in relation to an electrified wire?

Back

A magnetic field occurs around the entire length of the wire.

Front

What is the simplest requirement for creating an electromagnet?

Back

A length of electrified wire is the simplest requirement for creating an electromagnet.

Front

How does a coil of wire affect the strength of a magnetic field?

Back

A coil of wire generates a stronger magnetic field compared to a simple length of wire.

Front

What is a solenoid?

Back

A solenoid is a coil of wire that generates a magnetic field when an electric current passes through it.

Front

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

Back

The strength of the magnetic field increases when the current in an electromagnet is increased.

Front

Can the polarity of an electromagnet be reversed?

Back

Yes, the polarity of an electromagnet can be reversed by changing the direction of the electric current.

Front

What materials are typically used as cores in electromagnets?

Back

Iron is commonly used as a core material in electromagnets to enhance their magnetic field.

Front

What is the relationship between electricity and magnetism?

Back

Electricity and magnetism are interconnected; an electric current produces a magnetic field, and a changing magnetic field can induce an electric current.