Norton's Theorem application

Cards (18)

  • What is the purpose of Norton's Theorem?
    To simplify circuit analysis for current and voltage
  • What are the components of Norton's equivalent circuit?
    • Current source (I_N)
    • Norton resistance (R_N)
  • What is the first step to apply Norton's Theorem?
    Identify the load across which to find voltage and current
  • What does Norton's Theorem state about linear circuits?
    It simplifies them into a current source and resistance
  • What criteria must a component meet to be considered a load?
    It must be a specific component of interest
  • Why should the load be detachable from the circuit?
    To not affect the behavior of other parts
  • How does the load relate to the rest of the circuit?
    It often replaces a complex network
  • How do you find the Norton current (I_N)?
    By short-circuiting the load and calculating current
  • What are the steps to calculate Norton current (I_N)?
    1. Remove the load from the circuit
    2. Connect a short circuit across the load terminals
    3. Calculate the current flowing through the short circuit
  • What is the first action to determine Norton resistance (R_N)?
    Deactivate all independent sources in the circuit
  • How do you deactivate voltage sources when finding R_N?
    Replace them with short circuits (wires)
  • What should you do with current sources when calculating R_N?
    Replace them with open circuits (removed)
  • How do you calculate total resistance across load terminals?
    Using series and parallel resistance formulas
  • What is the Norton equivalent circuit composed of?
    A current source and a parallel resistor
  • What are the steps to draw the Norton equivalent circuit?
    1. Draw a current source (I_N) in the correct direction
    2. Connect a resistor (R_N) in parallel with the current source
    3. Indicate the load terminals where the original load was
  • How do you calculate voltage and current through the load using the Norton equivalent circuit?
    Connect the load and use Ohm's Law
  • What formulas are used to calculate load current (I_Load) and voltage (V_Load)?
    • I_Load = I_N * (R_N / (R_N + R_Load))
    • V_Load = I_Load * R_Load
  • Why is the Norton equivalent circuit useful?
    It simplifies calculations in complex circuits