Sketch the electric field lines for a positive point charge.

If the point charge above has a magnitudeQ=5.32 x 10^-11 C, what is the electrostatic potential at pointsr = 1.0 cm, 2.0 cm, 4.0 cm, 8.0 cm, and 10.0 cm? What are the shapes of the corresponding equipotential lines?

Describe how your answers would change above if you had a negative charge with the same magnitude.