Apply node analysis to this circuit
There are 4 non reference nodes
There is one supernode
There is one node connected to the
reference through a voltage source
We need three equations to compute
all node voltages
…BUT THERE IS ONLY ONE CURRENT FLOWING THROUGH ALL COMPONENTS AND IF
THAT CURRENT IS DETERMINED ALL VOLTAGES CAN BE COMPUTED WITH OHM’S LAW
I
STRATEGY:
1. Apply KVL
(sum of voltage drops =0)
2. Use Ohm’s Law to express
voltages in terms of the “loop current.”
RESULT IS ONE EQUATION IN THE LOOP CURRENT!!!
SHORTCUT
Skip this equation
Write this one
directly