2.1 Two objects, A and B, are initially uncharged. A negative charge of 4 nC flows from A to B. What is then the charge on each object? My problem with this is that a) the two objects are uncharged; to me "flow" of charge indicates current - I can understand the two objects becoming charged by static, but why on earth would a current flow between two uncharged objects? b) A negative charge of 4 nC... I know A will be left with a positive charge of 4 nC, and B will be left with a negative charge of 4 nC. So my instinct would be to say that A has a charge of 4 nC and B has -4 nC... however, it says a negative charge of 4 nC flows! This means A is left with -4 nC (because 4 nC has left it... but it was actually a negative charge that left it, so -4 nC is actually positive! I hope you're following this.) So, what will the charges be?