IV. Practice A. For the circuit on the right, pick a direction for the current in each branch. B. Label the ends of batteries and resistors with +/- to indicate which end is at a higher/lower electric potential. C. Write down Kirchoff's junction rule for half of the junctions (here, there are two junctions and they give you the same equation). D. Write down Kirchoff's loop rule for as many loops as you need to solve for all the unknowns. E. Use the general strategy outlined on the previous page to solve for the currents.