Electricity

Question 1

What is electric current?

Answer 1

The rate of flow of electric charge.

Question 2

When does an electric current flow?

Answer 2

When electrons move through a conductor

Question 3

What is current measured in?

Answer 3

Amperes (amps/ A), the ammeter must be connected in series when measuring current.

Question 4

What is potential difference (voltage)?

Answer 4

A measure of the energy in a circuit. It is measured in volts (V). The voltmeter in a circuit must be in parallel with the component.

Question 5

What is resistance?

Answer 5

The opposition to electrical current moving through components in a circuit.

Question 6

How can you increase resistance?

Answer 6

By increasing the length of the wire.

By making the wire thinner.