1. Two electric charges, the first value + 3Q and the secondvalue + 2Q are separated by a known distance d. What load and atwhat distance from the first load should a third collinear load beplaced with the other two, so that the three-load system is inequilibrium?
2. What is the force exerted on the load Q of the corner of acube of side a, if in each corner of the cube there are loads ofvalue Q (In total there are 8 loads in the cube)?
3. At point (0, a) there is a load + 2Q and at point (b, 0) aload of value -3Q. What is the value of the electric field (as avector) at the following points: (a, a), (b, b), (0,0)?
