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Norton’s Theorem Question & Answers

June 6, 2023 By Wat Electrical

This article lists 50 Norton’s Theorem MCQs for engineering students. All the Norton’s Theorem Questions & Answers below include a hint and a link to the relevant topic wherever possible. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of Norton’s Theorem.

Norton’s Theorem states that any linear electrical network with multiple sources and resistors can be simplified into an equivalent circuit with a single current source in parallel with a single resistor. This theorem is particularly useful in simplifying complex circuits and calculating the behavior of a specific component within a larger network.

The step-by-step explanation of how to apply Norton’s Theorem is to Identify the portion of the circuit for which you want to find the Norton equivalent, Remove all other components from the circuit except for the portion of interest, Calculate the short-circuit current (I_Norton) that would flow through the two terminals of the portion of interest if it were shorted.

Measure the equivalent resistance (R_Norton) across the terminals of the portion of interest when all the independent sources are turned off (replaced by their internal resistances). Represent the Norton equivalent circuit by a current source (I_Norton) in parallel with a resistor (R_Norton).

By using Norton’s Theorem, you can simplify a complex circuit into a much simpler form while preserving its behavior with respect to the terminals of interest. This simplification makes it easier to analyze and solve circuit problems.

1). In Norton’s Theorem, the current source is represented by ___________________?

Hint
2). The Norton current source is connected __________________?

Hint
3). The equivalent resistance (Rth) in Norton’s Theorem is found by ___________________?

Hint
4). Norton’s Theorem is applicable to _________________?

Hint
5). The main advantage of Norton’s Theorem is ________________?

Hint
6). In a circuit, a current source of 5A is connected in parallel with a resistance of 10Ω. What is the Norton current of the circuit?

Hint
7). A circuit contains a current source of 8A connected in series with a resistance of 4Ω. What is the Norton resistance of the circuit?


Hint
8). In a circuit, a current source of 2A is connected in parallel with a resistance of 6Ω. What is the Norton equivalent circuit?

Hint
9). In a circuit, a current source of 3A is connected in series with a resistance of 5Ω. What is the Norton equivalent circuit?

Hint
10). According to Norton's Theorem, a complex linear circuit can be replaced by a current source in parallel with a resistor. Which of the following statements is true regarding the Norton current source?

Hint
11). What is the relationship between Norton resistance (Rn) and Thevenin resistance (Rth) in a given circuit?

Hint
12). When finding the Norton equivalent circuit, the load resistor is replaced by a short circuit. What is the purpose of this step?

Hint
13). Which of the following statements is true regarding the Norton equivalent circuit?

Hint
14). In a circuit analysis problem, if you are given the Norton current (In) and Norton resistance (Rn), how can you find the Thevenin voltage (Vth) and Thevenin resistance (Rth)?

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15). What is the Norton current?

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16). How is the Norton current determined?

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17). The Norton current is equivalent to __________________?

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18). The Norton current source is connected in parallel with ______________________?

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19). What happens to the Norton current if the load resistance is changed?

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20). A circuit consists of a current source of 4A connected to load resistance of 5Ω. Determine the Norton current?

Hint

Norton's Theorem MCQ for Interviews

21). A circuit has a Norton equivalent current of 2A and a Norton equivalent resistance of 3Ω. Calculate the voltage across the load terminals when the load resistance is 4Ω?

Hint
22). In a circuit, the Norton equivalent current is 6A, and the Norton equivalent resistance is 2Ω. What is the short-circuit current across the load terminals?

Hint
23). A circuit with a Norton current of 10A and a Norton resistance of 2Ω is connected to a load resistance of 5Ω. Calculate the current flowing through the load?

Hint
24). In a circuit, the Norton equivalent current is 3A, and the Norton equivalent resistance is 4Ω. What is the open-circuit voltage across the load terminals?

Hint
25). A circuit has a Norton current of 5A and a Norton resistance of 10Ω. Determine the power dissipated by the load resistor of 4Ω?

Hint
26). A circuit consists of a current source of 3A and a load resistance of 6Ω. Determine the Norton equivalent resistance?

Hint
27). Norton’s Theorem is used to simplify complex electrical networks by replacing them with a single _________________?

Hint
28). In Norton’s Theorem, the Norton current is found by _____________________?

Hint
29). The Norton current is equivalent to the ________________?

Hint
30). In Norton’s Theorem, the Norton resistance is calculated by _________________?

Hint
31). The Norton resistance is equivalent to the _________________?

Hint
32). The current delivered to an external load by a Norton equivalent circuit is _________________?

Hint
33). The Norton equivalent circuit consists of a current source in parallel with a resistor. The resistor represents the _________________?

Hint
34). Norton’s Theorem can be used to find the power dissipated by the load by ____________________?

Hint
35). The Norton current source is connected in ______________?

Hint
36). Who developed the Norton Theorem?

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37). In which year was the Norton Theorem developed?

Hint
38). The Norton Theorem is commonly used in the field of ______________?

Hint
39). The Norton Theorem is an equivalent circuit theorem similar to __________________?

Hint
40). The Norton Theorem simplifies a linear, active, and bilateral network to a ________________?

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Norton's Theorem MCQ for Quiz

41). The current source in the Norton equivalent circuit is called ________________?

Hint
42). The resistance in the Norton equivalent circuit is called _________________?

Hint
43). The Norton current in the equivalent circuit is equal to __________________?

Hint
44). The Norton resistance in the equivalent circuit is equal to ___________________?

Hint
45). The transmission formula in Norton’s Theorem is given by _________________?

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46). When finding the Norton equivalent circuit, the open circuit voltage across the load is ____________________?

Hint
47). If the load resistance is equal to the Norton equivalent resistance, the power absorbed by the load is _______________?

Hint
48). In a circuit with inductors, which of the following is true about Norton’s Theorem?

Hint
49). In the Norton equivalent circuit, what is the relationship between the Norton current and the short-circuit current of the original circuit?

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50). In a circuit with capacitors, what is the effect of replacing the original circuit with the Norton equivalent circuit?

Hint

Read more about Resistors

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