Copied Experiment: Critical Potentials, 115 V
Experiment: Critical Potentials, 115 V
3B Scientific, UE5020500-115, Experiment for Atomic Physics: Critical Potentials, 115 V, 50/60 Hz, Basic EquipmentUE5020500-115 Includes Only:Critical Potentials Tube S with He-FillingTube Holder SPremium Franck-Hertz Experiment Power Supply (115 V, 50/60 Hz)Digital Oscilloscope, 2x30 MHzHF Patch Cord, BNC/4 mm PlugSet of 15 Safety Experiment Leads, 75 cmFeatures:Objective: Determine the critical potentials of a helium atomThe expression "critical potential" is a general name for all the excitation and ionisation energies in the electron shells of an atom. The corresponding electronic states can be excited in various ways, for example by inelastic collisions with electrons. If the kinetic energy of the electron corresponds to a critical potential, the electron can lose all its kinetic energy in an inelastic collision. An experiment setup originally designed by Gustav Hertz is used here to determine critical potentials.For more information, please see Data Sheet.
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