5. Point charge A is composed of 3.46 x 1016 electrons. It is 0.536 millimeters from point charge B. which is composed of 4.32 x 1012 electrons. (a) What is the total charge at each point? (b) What is the magnitude of the force that the charges exert on each other? 6. Two positive point charges of 7.2 x 10"ll C and 4.3 x 10 8 C, respectively, exert a 11.2-N force on each other. What distance separates the two charges? 7. A 24-volt battery and a 1525-$2 resistor are used to charge four 1525 0 capacitors, as shown. The capacitors C1, C2, C3. and C4 have WY values of 55.0 UF, 44.0 JF. 19.0 JF, and 88.0 UF, respectively. 24 V - C2 (a) What is the equivalent capacitance? (b) The switch is closed. What is the charging time constant? L