Electric Field and Potential

A positive charge is placed a short distance from a negative charge of equal magnitude. Which of the following diagrams best represents the electric field around the charges?

Which diagram best represents the electric field around a negatively charged conducting sphere?

Identical charges A, B, and C are located between two oppositely charged parallel plates, as shown in the diagram below. The magnitude of the force exerted on the charges by the electric field between the plates is

Electric potential ____________ as distance increases.

When a charge of 3 C is moved from infinity to a point X in an electric field, the work done is 15 J. What is the electric potential at X?

Which diagram represents the electric fields of a negative point charge, shown by º