We are________(eat) pizza right now.

We use simple present to talk about………..

Electricity is………………………………………

A______is a piece of metal

We use the_________ to talk about things which are happening right now.

Voltage,current, resistance and light bulb are some therms which represent electricity.

______________was the inventor of the light bulb.

The _______are part of the equipment protection that we use to avoid damage.

What is the meaning of the abreviation ACB?

A ________is an energy conversion device that converts electrical energy into light.