The voltage across a 50-F capacitor is shown in Fig. P6.5.

PHY 184 Week 7 Notes-DC Circuits 10/10-10/13  Most practical circuits cannon be resolved into series or parallel systems of capacitors and resistors o To handle this we use Kirchhoff’s rules  A Junction is a place where 3+ wires connect o Each connection between 2 junctions is called a branch  Each branch has the same current within the branch  A Loop in a current is any set of connected wires forming a closed path o You can get back to where you started Kirchhoff’s Junction Rule  The sum of currents entering a junction equals the sum of currents leaving the junction  Positive terms enter, negative terms exit n i =0 o k=1k  Consider a Junction with current i e1tering and i an2 i lea3ing