Transformers

__Transformers__


They can be used to //increase// or //decrease// voltage.
 * //Transformers//** are devices that are used to change voltage.
 * Transformers that increase voltage save energy. This is because less heat is lost in the high voltage transmission lines.
 * Transformers are also used to decrease voltage. This is to make electricity safe before it enters homes and work places.



//The picture above shows a pylon//. Electricity is carried at a high voltage through the transmission lines of a pylon - this is so less heat (energy) is lost which saves money.

The transmission lines are **Thick**. This is because you can deliver more electricity through a thicker wire.

If you try to push too much electricity through a thin wire it heats up and melts!