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Millikan Apparatus

The Most Economical Way to Perform the Millikan Experiment

The Most Economical Way to Perform the Millikan ExperimentOur apparatus utilizes specially designed latex spheres, instead of oil, for an easier and safer way to introduce your students to the Millikan experiment. The apparatus is:• Safer—because the spheres don’t require the use of radioactive sources• Easier—because the consistent size and reliable changes of droplets limits the calculations required in the experiment.The apparatus consists of a microscope with a diagonal mirror that puts the image upright so the latex spheres appear to fall down rather than up. A vernier control knob provides critical focusing of the light. The apparatus also features a parallel plate chamber, a potentiometer for adjusting voltage on the plates, a polarity reversing switch, and an atomizing system to produce charged latex spheres. We also include a supply of latex spheres solution (sphere diameter: 1.07 microns).



Item # Description Unit Availability Price Quantity
470110-490 Millikan Apparatus, Replacement Latex Spheres
Each Retrieving


Item # Description Height Length Width Voltage Output Voltage Current Voltage Input Unit Availability Price Quantity
470016-030 AC/DC 12 V Power Supply
0–12 VDC, 12 VAC - - - 0–12 VDC, 12 VAC 5 A 110/220V AC Each Retrieving
470039-592 AC/DC Digital Discharge Tube Power Supply
- 14 cm 26 cm 24 cm - - - Each Retrieving
470015-946 Multi-Purpose Multimeter
- - - - - - - Each Retrieving


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