4. Your experiment will be based on the one conducted by Robert Millikan starting in 1908. You will spray oil drops into the electric field of a capacitor and try to find the charge that the drops acquired when being sprayed. 5. Spritz (click on the bulb of the apparatus, the gray circle on the left) some oil drops into the region between the plates and see if you can get a drop to remain motionless. If you don't, then spritz again until a drop remains motionless. Draw the drop and show the forces that are acting on the drop