The diagram at right shows the electric field lines associated with two charges QL on the left and QR on the right.
i. [3 pts] What are the signs of charges QL and QR? Explain.
ii. [3 pts] [4 pts] Is the magnitude of QL larger, smaller, the same size, or not possible to compare with the magnitude of QR? Explain.
iii. [4 pts] At each of the points A, B, and C, draw a vector to show the direction of the electric field. Rank the magnitude of the electric fields below.