Unit 2 - Practice Quiz

1 Thevenin's theorem states that any linear active two-terminal network can be replaced by a single voltage source in series with a resistor . How is calculated?

2 When calculating the Thevenin equivalent resistance () of a network containing independent sources, how are the sources treated?

3 Norton's theorem replaces a linear two-terminal circuit with:

4 What is the relationship between Thevenin's resistance () and Norton's resistance () for the same network looking into the same terminals?

5 The Superposition Theorem is applicable only to networks that are:

6 Which of the following quantities cannot be calculated directly using the Superposition Theorem?

7 In the Maximum Power Transfer Theorem for a DC circuit, maximum power is transferred to the load resistance when:

8 What is the percentage efficiency of a circuit at the condition of Maximum Power Transfer?

9 Millman's Theorem yields an equivalent:

10 The Reciprocity Theorem applies to networks that are:

11 Tellegen's Theorem is based on the principle of:

12 Does Tellegen's Theorem depend on the type of elements (linear/non-linear, active/passive) in the network?

13 In a linear network, if a voltage source at branch produces a current at branch , then moving the voltage source to branch will produce current at branch . This describes:

14 Calculate the Norton Current if the Thevenin Voltage is and the Thevenin Resistance is .

15 When applying the Superposition Theorem to a circuit with dependent sources:

16 For an AC circuit, the Maximum Power Transfer Theorem states that for maximum power, the load impedance should be:

17 If a Thevenin equivalent circuit has and , what is the maximum power that can be delivered to a load?

18 Millman's Theorem is effectively a specific application of which two theorems combined?

19 Which theorem is most useful for analyzing a network with multiple sources without solving simultaneous equations for the entire circuit?

20 In the context of the Reciprocity Theorem, the ratio is often called:

21 What is the equivalent resistance across terminals A-B if the circuit consists of a resistor in parallel with a resistor?

22 Thevenin's Theorem reduces a complex network to:

23 If the source impedance is pure resistance and the load is a pure reactance , can Maximum Power Transfer occur?

24 Using Millman's Theorem, if three voltage sources with internal conductances are in parallel, the equivalent voltage is:

25 In Tellegen's Theorem, the equation implies that:

26 Which theorem allows for the calculation of the current in a specific branch by replacing the rest of the network with an equivalent current source?

27 To determine experimentally in a lab, one would:

28 If a network has 3 independent voltage sources and 2 independent current sources, how many sub-circuits must be analyzed to use the Superposition Theorem?

29 A network contains non-linear resistors (diodes). Can Thevenin's Theorem be applied to find the equivalent circuit looking into the terminals of the linear portion?

30 If and the load is variable, at what load resistance is the power efficiency roughly 99% (approaching 100%)?

31 In a reciprocal network, the Transfer Admittance is equal to:

32 When applying Tellegen's Theorem to two different networks (Network A and Network B), they must share:

33 A current source with parallel resistance can be converted into a voltage source with series resistance where equals:

34 If the load impedance is fixed and the source impedance is variable, maximum power is transferred when:

35 Which of the following is NOT a requirement for the Reciprocity Theorem?

36 The voltage in Millman's theorem is calculated across:

37 In a DC circuit, if and , and the load is a battery (opposing polarity) with internal resistance . What is the current?

38 Why is the Maximum Power Transfer Theorem rarely used in power transmission systems (like the electrical grid)?

39 The 'Dual' of Thevenin's Theorem is:

40 Under what condition does Superposition NOT hold for voltage/current?

41 When calculating Norton's Resistance , the terminals A and B are:

42 Which theorem states that the algebraic sum of the products of branch voltages and branch currents is zero?

43 If you measure the open circuit voltage as and the short circuit current as for a linear network, what is the internal resistance?

44 When applying the Superposition theorem, if there are two sources and , and the response due to is and due to is . The total response is:

45 In the Maximum Power Transfer theorem for AC, if the load is purely resistive () and the source is complex (), maximum power is transferred when:

46 Which theorem is best suited for finding the voltage across two nodes joined by multiple parallel branches containing voltage sources?

47 A network is reciprocal if the _____ matrix is symmetric.

48 If a current source is in parallel with resistance , to convert it to a Thevenin equivalent, the voltage source will have polarity:

49 Tellegen's theorem is valid for:

50 Consider a circuit where and . A load is connected. If changes from to , what happens to the power transferred?