1. Find the electric force between two electrons each with a charge of 1.6 x 10-19 C if they are located 0.50 μm apart. (1μm = 1 x 10-6 m). Is this an attractive or repulsive force? Be sure to show all work and use proper scientific notation and significant figures in your answer.
2. Find the magnitude of an electric field located 2.00 cm from a source charge of 7.0 nC. (1nC = 1 x 10-9 C).
Will the field lines point toward or away from the source charge? Show your work and include an electric field diagram assuming the source is a point charge.
3. What is the electric potential difference of an electron moved 15.00 mm in an electric field if the potential energy changes -2.00 J? Show your work. See question 1 for charge of an electron.