Revision: Sources of electricity

________________ such as oil, goal and natural gas need to burn to make electricity.

A step-down transformer changes ......................... voltage into a ........................ voltage. A step-up transformer does the .......................

Dry cells store energy in the form of ....................

What is the name of the coil that produces the output voltage?

What is the name of the missing component in the figure below?

Which of the following is not a type of power station?

Why is electricity transmitted in high voltages?

Compared to batteries, the mains electrical supply is .....................

The core of a transformer is made of ........................

A transformer only works with ...................