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In support of all the students who are displaced from school due to the Corona virus. Access to physics zone and chemistry zone lessons are now available free of charge. This will be maintained at least through August 1st 2020. Learn and be well.

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Forces on Multiple Charges

In this movie, you see three positive charges near each other. The electrostatic force (labeled as FE) from each of the other two charges is shown on each charge. Notice how the forces are large when two charges are near each other but get smaller as they move apart.

In this simulation you see two positive charges with one negative charge in between them. Notice how the closer the charges get, the stronger the forces become. The vibration that you see at the end of the simulation (looks like a bird flapping its wings) is very similar to the vibration of water molecules. In the case of the water molecule, the blue would be Hydrogen ions and the green would be the Oxygen ion.