The Millikan Oil-Drop Experiment
The Millikan Oil-Drop Experiment HISTORY The year is 1911, and you are taking a physics course Your professor is Robert Millikan Professor Millikan has you and your classmates doing a lab experiment to measure e the magnitude of the charge of an electron, as well as to determine if charge is quantized (in other
Robert Millikan Scientific Misconduct
the history of measurements of the charge of an electron, after Millikan If you plot them as a function of time, you find that one is a little bit bigger than Millikan's, and the next one's a little bit bigger than that, and the next one's a little bit bigger than that, until finally they settle down to a number which is higher
Millikan Oil Drop Experiment
Millikan Oil Drop Experiment Dr Darrel Smith Department of Physics and Astronomy Embry Riddle Aeronautical University (Dated: 19 March 2018) The purpose of this experiment is to use Millikan’s oil drop apparatus to observe the quantization of the electron charge, and to measure the fundamental charge of the electron e= 1:602 10 19 C Two methods
Millikan Oil Drop Data Analysis - UCI Physics and Astronomy
Millikan Oil Drop Data Analysis: The experiment consists of raising a tiny, electrical ly charged oil drop in an electric field and then lowering it again To raise it you apply a constant electric field on the drop that forces it upward To lower the drop you can either turn off the electric field and just le t it fall or you can reverse the
Millikan Oil Drop Experiment - Physics & Astronomy
Millikan Oil Drop Experiment Introduction This experiment involves the determination of the charge of the electron (e) But remember, the objective of this class is to test models: what model is being tested here? You will see that the end result, the electronic charge, is the result of a calculation involving a large number of
Measuring the electric charge: Millikan’s experiment
Fig 1 Design of the Millikan oil-drop experiment for determining the electronic charge Some of the oil drops become charged during the atomization process, or they acquire a charge from the surrounding air, or they are ionized by an alpha-particle from a small radioactive source Most of the drops are neutral, some are negatively charged, and
Millikan Oil Drop Derivation ··· Seth Hopper 4/3/06
Millikan Oil Drop Derivation ··· Seth Hopper ··· 4/3/06 Our goal is to empirically determine the charge of an electron Start by considering a small drop of oil, with mass m, falling freely through air at terminal velocity, v f, as shown If the local acceleration of gravity is g, then Newton’s second law gives kv f −mg = ma = 0, (1)
Millikan Oil Drop - De Anza College
1 Place the Millikan Oil Drop apparatus on a level, solid table 2 Level the apparatus by using the bubble level as a reference and turning the leveling screws on the platform 3 Disassemble the droplet viewing chamber by lifting the housing straight up and then removing the upper capacitor plate and spacer plate (see Figure 3) 4
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