Listen to the full series on BBC Sounds. Charge is a property of a body which experiences a force in an electric field. Charge is measured in coulombs (C). Since electrons are so small and one ...

We can then look at how that energy changes when we apply other kinds of fields. The most significant type of interaction is simply between the charge of the electron and an applied electric field ...

It's like a magnetic field: just as the opposite poles of two magnets attract each other, so do the positive and negative charges in an electric field. This "opposites attract" electric field is ...

This project provides a Python tool to simulate electric fields and potentials generated by simple charge distributions in a two-dimensional space. The simulation visualizes electric lines of force ...

As an embryo grows, there is a continuous stream of communication between cells to form tissues and organs. Cells need to read numerous cues from their environment, and these may be chemical or ...