(a) Redraw the circuit of but with R replaced by a 1-mA current source fl owing downward. Assuming C is initially discharged, sketch and label vO(t) if vI (t) is the on results square-wave shown, and...

(a) Redraw the circuit of but with R replaced by a 1-mA current source fl owing downward. Assuming C is initially discharged, sketch and label vO(t) if vI (t) is the on results square-wave shown, and C 5 1 F. (b) Repeat, but with the 1-mA source now fl owing upward. Compare the two cases, comment.