Electromagnetism

Front

What is electromagnetism?

Back

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

Front

What is the relationship between electricity and magnetic fields?

Back

Electricity always creates a magnetic field.

Front

What are magnetic field lines?

Back

Magnetic field lines are visual representations of the magnetic field around a magnet, showing the direction and strength of the field.

Front

What happens when two north poles of magnets are brought close together?

Back

They will be repelled from each other.

Front

What are the poles of a magnet?

Back

The poles of a magnet are the regions where the magnetic force is strongest, typically referred to as the north and south poles.

Front

What is the effect of a north pole and a south pole of magnets?

Back

A north pole and a south pole will attract each other.

Front

What is a magnetic field?

Back

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

Front

What is the direction of magnetic field lines?

Back

Magnetic field lines exit from the north pole and enter the south pole of a magnet.

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

How can the strength of an electromagnet be increased?

Back

The strength of an electromagnet can be increased by increasing the electric current, adding more coils of wire, or using a ferromagnetic core.