Follow

Electrostatics

  • K5-04: PIEZOELECTRIC GUN

    K5-04
    Application of piezoelectricity to produce copious quantities of electric charge.
    Hold the bundle of nylon strings by the knot and stroke it with the silk, causing the strings to become charged and to spread out due to the electrostatic repulsion. Aim the gun at the spread out string, slowly pull and then release the trigger. When the trigger is pulled the string separates slightly more (same charge), but when the trigger is released it creates the opposite charge, discharging the string so that the string bundle collapses (right photograph).

  • P4-51: MILLIKAN OIL DROP MODEL

    P4-51
    Demonstrate geometry for the Millikan oil drop experiment.
    This is a non-working model to illustrate the geometry of the Millikan experiment. A helium balloon tethered to the lower plate represents the oil drop. The plates are charged by the Wimshurst machine to create the electric force on the charged oil drop.