An oil drop with a mass of 2.48 x 10^-15 kg is stationary somewhere between two horizontal parallel plates that are spaced 1.6 cm apart and connected to a 260 V power source. The lower plate is positive.

a) Draw a fully labelled diagram of this scenario. Include a FBD on the oil drop. Include all important labels, measurements, values, and variables.

b) What is the sign of the charge of the oil drop? Fully explain how you know in a sentence or two.

c) Calculate the charge of the oil drop.Round your answer to 3 sig figs.

d) How many excess or deficit electrons or there? (Be sure to state whether it is a deficit or excess.)