Chapter 4

Question 1

how to use the node voltage equation

Answer 1

 Select a reference node
 Assign a node voltage to each node
 Write KCL equations for each node except the
reference node
 Setup a matrix of equations and solve for the
unknown variables

Question 2

how to use node voltage with a dependant source

Answer 2

solve for the dependant source with terms you know

Question 3

supernode

Answer 3

is used to avoid introducing an ad-hoc
current variable in writing KCL equations when a
voltage source is connected between two nodes
neither of which is the reference node
- When two nodes are connected by a voltage source
(independent or dependent) they combine into a
supernode for writing KCL equations

Question 4

supermesh

Answer 4

• A supermesh is used to avoid introducing an ad-hoc
  voltage variable in writing KVL equations when two
  meshes share a current source
• When two meshes share a current source (independent
  or dependent) they combine into a supermesh for
  writing KVL equations