Nortons Theorem Interview Viva Questions with Answers

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Question-1. What is Norton's theorem?

Answer-1: Norton's theorem states that any linear electrical network with multiple sources and resistors can be replaced by a single current source in parallel with a single resistor.

Question-2. When would you use Norton's theorem?

Answer-2: Norton's theorem is useful for simplifying complex circuits, especially when analyzing circuits with multiple sources and resistors.

Question-3. Can Norton's theorem be applied to nonlinear circuits?

Answer-3: No, Norton's theorem is only applicable to linear electrical networks.

Question-4. Can Norton's theorem be applied to circuits with capacitors and inductors?

Answer-4: No, Norton's theorem is limited to resistive networks. It cannot be applied directly to circuits containing capacitors and inductors.

Question-5. Can Norton's theorem be applied to AC circuits?

Answer-5: Yes, Norton's theorem can be applied to both DC and AC circuits, provided they are linear.

Question-6. What are the steps involved in applying Norton's theorem to a circuit?

Answer-6: Find the Norton equivalent resistance by removing all sources and calculating the resistance across the terminals. Then find the short-circuit current across the terminals to determine the Norton equivalent current source.

Question-7. Can a circuit have multiple Norton equivalent circuits?

Answer-7: Norton's theorem guarantees that there is only one Norton equivalent circuit for a given original circuit.

Question-8. What is the Norton equivalent circuit of a circuit with only resistors and no sources?

Answer-8: In this case, the Norton equivalent circuit will have a current source equal to zero (short circuit) in parallel with the total resistance of the network.

Question-9. How Norton resistance is found in a norton equivalent circuit?

Answer-9: Ideal current sources have infinite internal resistance hence behave like an open circuit whereas ideal voltage sources have zero internal resistances hence behave as a short circuit. So, to obtain Norton resistance, all voltage sources are shorted and all current sources are opened.

Question-10. Can we use Norton’s theorem on a circuit containing a BJT?

Answer-10: We can use Norton’s theorem only for linear networks. BJT is a non-linear network hence we cannot apply Norton’s theorem for it.

Question-11. Which theorem is also known as the dual of Norton’s theorem?

Answer-11: Thevenin’s theorem is also known as the dual of Norton’s theorem because in Norton’s theorem we find short circuit current which is the dual of open circuit voltage-what we find in Thevenin’s theorem.

Question-12. What is the main difference between Norton's theorem and Thevenin's theorem?

Answer-12: Thevenin's theorem replaces a network with a single voltage source and a single resistor in series, while Norton's theorem replaces it with a single current source and a single resistor in parallel.

Question-13. What is Norton equivalent current (I_{N}) in terms of Thevenin equivalent voltage (V_{TH<}

Answer-13: I_{N} = V_{TH} / R_{TH}, where R_{TH} is the Thevenin equivalent resistance.

Question-14. How is the Norton equivalent resistance (R_{N}) related to the Thevenin equivalent resistanc

Answer-14: R_{N} = R_{TH}, they are the same.

Question-15. What is the practical significance of Norton's theorem?

Answer-15: Norton's theorem allows engineers to simplify complex circuits into more manageable forms for analysis and design.

Question-16. Can Norton's theorem be used to find maximum power transfer?

Answer-16: Yes, Norton's theorem can be used to find the load resistance for maximum power transfer by matching the load resistance to the Norton equivalent resistance.

Question-17. How does Norton's theorem relate to superposition theorem?

Answer-17: Norton's theorem is a simplification technique for linear circuits, while superposition theorem allows for analysis by considering the effects of individual sources one at a time.

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Norton's Theorem Questions with Answers

Norton's Theorem Trivia MCQ Quiz

- Electric Current
- Electricity
- Maximum Power Theorem
- Thevenin's Theorem
- Kelvins Bridge Experiment
- Ohms Law
- Kirchhoffs Law KCL and KVL
- Mesh Analysis
- Parallel elements & Current Division
- Series elements & Voltage Division
- Star Delta Connection
- Nodal Analysis
- Norton's Theorem
- Superposition Theorem
- Reciprocity Theorem
- Single Phase Transformer
- Single Phase Induction Motor
- RLC Circuits
- Three-Phase Systems
- Maxwell's Equations
- Transmission Lines
- Smith Chart
- Electrical Safety
- Grounding and Bonding
- Circuit Breaker
- Electric Grids and Smart Grids
- Electric Power Transmission
- Electrical Maintenance
- Fault Analysis
- Network Analysis
- Alternating Current