Someone !
a red and a blue balloon are each rubbed against a woolen sweater. doing this gives the balloons equal negative electric charges. if the balloons are tied to the same meter stick, which diagram represents the system with greatest amount of electrical potential energy?

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_