What is the difference between voltage and current?

The voltage (or potential difference) between two points is the cost in energy to move a unit of positive charge from the point of lower potential to the point of higher potential. Current is the rate of flow of electric charge through a point. A potential difference across two points on a circuit causes an electric current to flow between them.

DW

Related Physics GCSE answers

All answers ▸

Can you explain what the flux of a light source is?


Explain the difference between speed and velocity.


Whats the difference between speed and velocity?


A car is travelling at 10m/s. It then accelerates at a constant rate.Find the time taken for the car to travel 1km if the car’s final velocity is then 22m/s .