Please answer the following in details, steps and in English please. Please make sure the attachment with your answer is accessible. Thank you!!

Questions:

11. Draw appropriate electric field lines for the charges below, showing the NET electric field for this region of space. ( check attachment to see question's image)

12. When considering the forces acting between two charged objects, explain why we would typically only consider the Coulomb's force and not the force of gravity.

13. A student rubs a balloon against her hair. She then places the side of the balloon against a wall and the balloon sticks to the wall. Explain why the balloon sticks to the wall.

14. Robert Millikan received a Nobel prize for determining the charge on the electron. To do this, he set up a potential difference between two horizontal parallel metal plates. He then sprayed drops of oil between the plates and adjusted the potential difference until drops of certain size remained suspended at rest between the plates, as shown above. Suppose that when the potential difference between the plates is adjusted until the electric field is 1.00x10^4 N/C downward, a certain drop with a mass of 3.27x10^-16 kg remains suspended.

a) What is the charge on this drop?

b) if the distance between the plates is 0.010m, what is the battery's potential?

c)The oil in the drop slowly evaporates while the drop is being observed, but the charge on the drop remains the same. Indicate whether the drop is being remains at rest, moves upward, or moves downward. Explain briefly, using equations to support your answer.

Short Answer [10 marks] 11. Draw appropriate electric field lines for the charges below, showing the NET electric field for this region of space. (5 marks) -2 4/8 -A 12, When considering the forces acting between two charged objects, explain why we would typically only consider the Coulomb's force and not the force of gravity. [3 marks] 13. A student rubs a balloon against her hair. She then places the side of the balloon against a wall and the balloon sticks to the wall, Explain why the balloon sticks to the wall. [2 marks]Part C -Thinking (Full Solution is required) [10 marks] Oil Drop 14. Robert Millikan received a Nobel Prize for determining the charge on the electron. To do this, he set up a potential difference between two horizontal parallel metal plates. He then sprayed drops of oil between the plates and adjusted the potential difference until drops of a certain size remained suspended at rest between the plates, as shown above. Suppose that when the potential difference between the plates is adjusted until the electric field is 1.00 x 10' N/C downward, a certain drop with a mass of 3.27 x 10 "" kg remains suspended. a. What is the charge on this drop? (4 marks) b. If the distance between the plates is 0.010 m. what is the battery's potential? (3 marks) c. The oil in the drop slowly evaporates while the drop is being observed, but the charge on the drop remains the same. Indicate whether the drop remains at rest, moves upward, or moves downward. Explain briefly. using equations to support your