A 0.80-μm-diameter oil droplet is observed between two parallelelectrodes spaced 11 mm apart. The droplet hangs motionless if theupper electrode is 26.6 V more positive than the lower electrode.The density of the oil is 885kg/m3.
Part A
What is the droplet's mass? Express your answer to twosignificant figures and include the appropriate units.
Part B
What is the droplet's charge?
Express your answer to two significant figures and include theappropriate units.
Part C
Does the droplet have a surplus or a deficit of electrons? Howmany?
| deficit 6 electrons |
| surplus 6 electrons |
| surplus 13 electrons |
| deficit 4 electrons |
