Home
Back
Norton's Equation:
| From: | To: |
Norton's theorem is an analytical method used in circuit analysis that simplifies any linear circuit to an equivalent circuit with a single current source and parallel resistance. The Norton current (IN) is calculated using the equation IN = V/R.
The calculator uses Norton's equation:
Where:
Explanation: This equation calculates the short-circuit current that would flow between two terminals of a linear network when replaced by its Norton equivalent.
Details: Norton's theorem is widely used in electrical engineering for circuit simplification, analysis of complex networks, and designing electronic circuits. It's particularly useful for analyzing power systems and electronic devices.
Tips: Enter voltage in volts (V) and resistance in ohms (Ω). Both values must be positive numbers greater than zero for accurate calculation.
Q1: What's the difference between Norton's and Thevenin's theorem?
A: Norton's theorem uses a current source with parallel resistance, while Thevenin's theorem uses a voltage source with series resistance. They are duals of each other and can be converted.
Q2: When should I use Norton's theorem?
A: Use Norton's theorem when analyzing circuits where current sources are more convenient, or when you need to find the current through a specific component.
Q3: Can Norton's theorem be applied to AC circuits?
A: Yes, Norton's theorem can be applied to AC circuits using complex impedance instead of resistance.
Q4: What are the limitations of Norton's theorem?
A: Norton's theorem only applies to linear circuits and cannot be used for nonlinear elements like diodes or transistors operating in nonlinear regions.
Q5: How do I find the Norton resistance?
A: The Norton resistance is found by calculating the equivalent resistance seen from the terminals when all independent sources are turned off (voltage sources shorted, current sources opened).