Physics, 14.02.2020 16:31, naomifelixwoo
In the famous Millikan oil-drop experiment, tiny spherical droplets of oil are sprayed into a uniform vertical electric field. The drops get a very small charge (just a few electrons) due to friction with the atomizer as they are sprayed. The field is adjusted until the drop (which is viewed through a small telescope) is just balanced against gravity and therefore remains stationary. Using the measured value of the electric field, we can calculate the charge on the drop and from this calculate the charge e of the electron. In one apparatus the drops are 1.10 μm in diameter, and the oil has a density of 0.850 g/cm3.(a) If the drops are negatively charged, which way should the electric field point to hold them stationary (up or down)? (b) Why? (c) If a certain drop contains four excess electrons, what magnitude electric field is needed to hold it stationary? (d) You measure a balancing field of 5183 N/C for another drop. How many excess electrons are on this drop?
Answers: 1
Physics, 22.06.2019 06:30, madisonhusbands1458
The mini-refrigerator fire was most likely caused by what type of wiring?
Answers: 2
Physics, 23.06.2019 06:30, lilzaya510
Give an example for each of the following situations: 1) negative acceleration, but positive velocity 2) positive acceleration and positive velocity 3) positive acceleration, but negative velocity 4) negative acceleration and negative velocity 5) positive velocity and no acceleration
Answers: 1
In the famous Millikan oil-drop experiment, tiny spherical droplets of oil are sprayed into a unifor...
Social Studies, 17.10.2021 03:20
Law, 17.10.2021 03:20
Mathematics, 17.10.2021 03:20
Mathematics, 17.10.2021 03:20
Mathematics, 17.10.2021 03:20