In our first contellation we learnt alittle about AC and DC, terms which come up form time to time. DC meaning Digital Current which goes either on or off, 0 or 1. Or  Analogue Current which has ranging different values.

AC – alternating current, the electric charge periodically reverses. Used in plug points, provides power to homes.DC – direct current , the electric charge flows in one direction. used in batteries, power packs.

When looking at the wiring inside things e.g. toys, wires connected to battery: red for + black for –



Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s