Electricity

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 consists of a wire coil wrapped around a core material, usually iron.

Front

How does the number of wire coils affect the strength of an electromagnet?

Back

The strength of an electromagnet increases with the number of wire coils around the core. More coils create a stronger magnetic field when an electric current passes through.

Front

What is a series circuit?

Back

A series circuit is a type of electrical circuit in which the components are connected end-to-end, so that the current flows through each component in turn. If one component fails, the entire circuit stops working.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of electrical circuit in which the components are connected across common points or junctions, providing multiple paths for the current. If one component fails, the others can still operate.

Front

What is a conductor?

Back

A conductor is a material that allows the flow of electric current. Examples include metals like copper and gold.

Front

What is an insulator?

Back

An insulator is a material that resists the flow of electric current. Examples include rubber, glass, and plastic.

Front

What happens to the current in a series circuit if one bulb goes out?

Back

If one bulb goes out in a series circuit, the entire circuit stops working because the current has only one path to follow.

Front

What happens to the current in a parallel circuit if one bulb goes out?

Back

If one bulb goes out in a parallel circuit, the other bulbs continue to work because there are multiple paths for the current.

Front

What is the role of a battery in an electrical circuit?

Back

A battery provides the electrical energy needed to push the current through the circuit.

Front

What is the difference between a conductor and an insulator?

Back

A conductor allows electric current to flow easily, while an insulator resists the flow of electric current.