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The total of the electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity.
Both the electric field and magnetic field can be defined from the Lorentz force law. The electric force is straightforward, being in the direction of the electric field if the charge q is positive, ...
Using a Field Effect Transistor (FET) to detect external electric fields. A circuit is built and tested.
The cyclotron was one of the earliest types of particle accelerators, and is still used as the first stage of some large multi-stage particle accelerators. It makes use of the magnetic force on a ...
Voltage is electric potential energy per unit charge, measured in joules per coulomb ( = volts).
Like charges repel and unlike charges attract. Information on coulomb's law and links to related information.
PDF of Experimental notes for the Millikan electric charge experiment, as originally carried out in 1913.
The Retard Physlet shows the time development of electric fields from an accelerating charge.
The Biot-Savart Law relates magnetic fields to the currents which are their sources. In a similar manner, Coulomb's law relates electric fields to the point charges which are their sources.
HowStuffWorks article on electric guitars and how they use magnetic coils to translate sound into an electrical signal.
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