Node Analysis Quiz

A major node is defined as:

• Node with highest voltage

• Node where 3 or more branches meet

• Node with different branch currents

• Node connected to voltage source

Reference node is typically marked with:

• + symbol

• - symbol

• Ground symbol

• No special marking

For 5 total nodes with node 3 as reference, independent node voltages are:

• V₁, V₂, V₃, V₄, V₅

• V₁, V₂, V₄, V₅

• V₁, V₂, V₃, V₄

• V₁, V₂, V₃

Circuit with 6 nodes, reference chosen. Number of unknown node voltages:

• 6

• 5

• 4

• 3

In systematic nodal analysis, branch currents are assumed as:

• Always entering the node

• Always leaving the node

• Following actual direction

• Random direction

Once node voltages are known, branch currents are found using:

• KVL only

• Ohm's law: I = (V₁ - V₂)/R

• Power equations

• KCL only