Revise GCSE Physics

Question:: How is electricity charge on an electricity bill?

Your bill is calculated by the number of units of electricity you have used.

One unit of electricity is one kiloWatthour.

The price of one unit is multiplied by the number of kiloWatthours to calculate your bill.

For example. If you used 200 kWh's and the cost of a unit is 10p.

Then your bill will be 200x10p = 2000p = £20.00