Circuit Foundation Simulated Test Paper 3 1. Single-choice questions: In the following questions, there are four alternative answers. Please put the only correct answer in brackets.(There are 6 sub-questions in this topic, totaling 27 points) 1. (4 points in this sub-question)The equivalent conductance G of the illustrated circuit is: Answer () A. S. B. S. C. S. D. S. 2. (4 points in this sub-question)RLThe sinusoidal voltage (t) at both ends of a series circuit is maintained at a certain level. If it is connected in parallel with a capacitor, the total current will be reduced.U A. Increase B. Decrease C. Invariant D. Not sure 3. (4 points in this sub-question)In the diagram circuit.Then Answer () A. B. C. D. 4. (4 points)Fig. 2 shows that two sinusoidal AC two-terminal networks are equivalent to each other when they are equal to 2 rad/s, and W, W, and () A. F, F; B. F, F; C. F, F; D. F, F 5. (4 points in this sub-question)The equivalent inductance of the coils with mutual inductance in parallel is shown as follows: A () A. L1+L2+2M B. L1+L2-2MC. D. 6. (7 points in this sub-question)The two-terminal network and its Norton equivalent circuit are shown in the figure. The parameters of its Norton equivalent circuit are as follows: 2. Fill in the questions: In the following questions, please fill in the answers required by the end of the questions above each horizontal line in the stem. (There are 5 sub-questions in this topic, totaling 33 points) 1. (3 points in this sub-question)In the diagram circuit, when the switch is closed, the waveform is _____. 2. (6 points in this sub-question)It is known that sinusoidal current A, sinusoidal voltage V, then, A, V, lead phase difference ____. 3. (6 points in this sub-question)The diagram shows a symmetrical three-phase circuit. If the line current A is known, the line voltage equals. 4. (6 points in this sub-question)The circuit is shown in the figure, V. It is known that if both the voltmeter and the ammeter measure the RMS, their readings are V and A. 5. (12 points in this sub-question)The circuit is shown in the figure. The superposition theorem is applied to calculate the current and time. Yes. 3. Non-objective Questions (4 points for this topic)The mesh equation of a given circuit is Draw a possible structure of the circuit. 4. Non-objective Questions (4 points for this topic)The circuit is shown in the figure, and the differential equation showing the relationship between the current and the voltage source is written. 5. Non-objective questions (6 points for this topic)When the circuit is shown, the switch is turned on. When the switch is known to be turned on, try it out. 6. Non-objective Questions (8 points for this topic)As shown in the figure, the power of each power supply is calculated (the absorption power is positive and the supply power is negative). 7. Non-objective questions (9 points for this topic)The sinusoidal AC circuit is shown in the figure. The current in the figure is calculated by superposition theorem. 8. Non-objective Questions (9 points for this topic)The circuit with ideal transformer is shown in the figure. In order to obtain the maximum power of load resistance L, the ratio of variation and the maximum power Lmax are calculated.RNP Analog Test Paper 3 of Circuit Basis (Answer) 1. Single-choice questions: In the following questions, there are four alternative answers. Please put the only correct answer in brackets.(There are 6 sub-questions in this topic, totaling 27 points) 1,,,,,,,,B 2D 3B 4B 5C 6 2. Fill in the questions: In the following questions, please fill in the answers required by the end of the questions above each horizontal line in the stem. (There are 5 sub-questions in this topic, totaling 33 points) 1. (3 points in this sub-question) 2. (6 points in this sub-question) 3. (6 points in this sub-question)V 4. (6 points in this sub-question)10 , 1 5. (12 points in this sub-question) ,,,,,,,, 3. Non-objective Questions (4 points for this topic) 4. Non-objective Questions (4 points for this topic) 5. Non-objective questions (6 points for this topic) (b) 6. Non-objective Questions (8 points for this topic) ;;;; 7. Non-objective questions (9 points for this topic) When Voltage Source V acts alone A When current source A acts alone A A 8. Non-objective Questions (9 points for this topic) N1= 2, PLmax = 2W

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