Learn how electric circuits work and how to measure current and potential difference with this guide for KS3 physics students aged 11-14 from BBC Bitesize.

We'll talk about three big ideas: electric potential difference (voltage), electric current, and electric field. Yes, they are all related, and I will show you how with some water and an LED.

Last time, we learned that when there's a difference in electric potential between two points, the voltage gives charged particles, like electrons, the energy to move from one place to another.

Finding the electric potential created by a point charge is like finding the difference in potential energy per unit charge, between the spot right next to the point charge and somewhere ...

To start, remember that for a constant electric field the change in electric potential energy would be: WARNING: that is only for a constant electric field. I know you will be tempted later to use ...

Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I really like to use numerical calculations without all the fancy programming ...

If you're trying to choose between an electric radiator and space heater, there are a few key differences, including cost, that you should be aware of.

EPZs protect ground crews from hazardous energy by eliminating differences in electric potential between any two points on a worker’s body, known as step and touch potential. Without a difference of ...

Either type, they function pretty much the same. Lithium ions store the energy by creating an electric potential difference between the negative and positive poles of the battery.