METHODS OF PRODUCING VOLTAGE (ELECTRICITY) Basic Electrical TheorySummaryThe important information contained in this chapter is summarized below.Methods of Producing Electricity SummaryElectrochemistry - Combining chemicals with certain metals causes a chemicalreaction that transfers electrons.Static electricity - When an object with a normally neutral charge loses electrons,due to friction, and comes in contact with another object having a normal charge,an electric charge is exerted between the two objects.Magnetic induction - Rotating coils of wire through a stationary magnetic fieldor by rotating a magnetic field through a stationary coil of wire produces apotential.Piezoelectric effect - Bending or twisting certain materials will cause electronsto drive out of orbit in the direction of the force. When the force is released, theelectrons return to their original orbit.Thermoelectricity - Heating two joined dissimilar materials will cause a transferof electrons between the materials setting up a current flow.Photoelectric effect - Dislodging of electrons from their orbits by light beamscreates positively-charged objects.Thermionic emission - Freeing electrons from a hot surface causes electrons toescape.ES-01 Page 26 Rev. 0
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