1. What is the force that acts between two charges of different signs, attractive or repulsive? Draw the previous examples in your notebook but assuming that, in this case, the charge on the right is negative, and the charge on the left is positive.

2. Imagine two equal charges located one meter away from each other. If we bring them closer to a distance of 20 cm, will the force increase or decrease? In what proportion?

3. If we maintain the distance between the loads from the previous exercise but double the value of the load of one of them, how will the force vary?

use Coulomb's law.