Electricity and Magnetism

Front

What happens when you increase the number of loops in the coils of a solenoid?

Back

It strengthens the solenoid’s magnetic field.

Front

How can you differentiate between electromagnets and permanent magnets?

Back

Electromagnets can be turned on and off.

Front

What is the role of an insulator in an electrical circuit?

Back

An insulator stops the flow of electricity.

Front

Why does a paper clip stick to a nail when an electric current passes through it?

Back

The electric current in the circuit magnetizes the nail.

Front

What unit is electric current measured in?

Back

Amperes.

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 is the difference between conductors and insulators?

Back

Conductors allow electricity to flow, while insulators prevent it.

Front

What is a magnetic field?

Back

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

Front

What is the function of a switch in an electrical circuit?

Back

A switch opens or closes the circuit, controlling the flow of electricity.

Front

What is the relationship between electricity and magnetism?

Back

Electricity can create a magnetic field, and a changing magnetic field can induce an electric current.