Electricity 4.2 Current

• Natuurkunde
• Middelbare school
• mavo, havo, vwo
• Leerjaar 2

Electricity

§2  Current & Making an electrical circuit

Insulators and conductors

              Insulators                                                                   Conductors

What can we find in an electrical circuit?

What does it actually look like?

• For a circuit to work, it needs to be closed using conductors.
• Once it is closed, 'something' starts moving through the wires. This 'something' is called charge.
• The amount of charge that flows through the wires is called the electrical current.
• The electrical current can be measured in Ampere (A) (often 'amps' is used)

The ammeter

We can measure this electrical

current using an ammeter.

You can say:

'A current of 0.2A is running

through a light bulb.'

phet.colorado.edu

Working on the exercises

Read: paragraph 2

Do: Even excercises of 4.2