Date: Page: In a millikap 's oil drop experiment, a drop is observed to fall with a terminal speed 1-4 mmis in the absence of electric field. When a vertical electric field of 4.9x105v1m is applied, the droplet is observed to continue to move downward at a lower terminal speed 1:21 mmls, calculate the Charge on the dropDensity of oil = 750 kg/m3, vis- cosity of air= 1.81x10-6 ighs, density of air =.291g|m3) solution, Ans: 5,16810-196​