Electromagnetism

Front

What is Electromagnetism?

Back

Electromagnetism is the branch of physics that deals with the interaction between electric charges and magnetic fields.

Front

What is an Electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Front

What happens to the force between two charged objects when you double the distance between them?

Back

The force is cut by 1/4.

Front

If you double one of the charges, what happens to the force between two charged objects?

Back

The force doubles.

Front

What did Hans Christian Orsted's experiment demonstrate?

Back

It showed that electricity and magnetism are related.

Front

What is the relationship between electric current and magnetic fields?

Back

An electric current produces a magnetic field around it.

Front

What is the formula for the force between two point charges?

Back

F = k * (|q1 * q2|) / r^2, where k is Coulomb's constant.

Front

What is Coulomb's Law?

Back

Coulomb's Law describes the force between two charged objects as directly proportional to the product of their charges and inversely proportional to the square of the distance between them.

Front

What is the direction of the magnetic field around a straight current-carrying wire?

Back

The magnetic field forms concentric circles around the wire, with the direction determined by the right-hand rule.

Front

What is the right-hand rule?

Back

The right-hand rule is a mnemonic for understanding the direction of the magnetic field relative to the direction of current flow.