Datasets:

h3inkr
/

eee_v1

sample_id int32 3 124	problem stringlengths 212 1.04k	solution stringlengths 1 5
3	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: The voltage of the three electrodes of a silicon transistor measured with a multimeter is shown in the figure. It can be determined that the transistor is operating in ( ) Choices A. Amplification state B. Cu...	A
4	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: In the voltage comparator circuit shown in figure, the stable voltage of the Zener diode VD\(_{Z}\) is \( U_{Z} = 6V \), with a forward conduction voltage \( ...	-2
5	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: In the circuit shown in figure, to make the current \( I = 2A \), the value of the resistor \( R \) should be _______ Ω.	4
8	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the circuit shown in figure, the static tube voltage drop \( U_{CE} \) is 7V, then the quiescent current \( I_E \) is ( ). Choices A. 5mA B. 10mA C. 12mA D. 24mA	A
10	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: Replacing the circuit shown in figure (a) with the equivalent current source shown in figure, the parameters of the current source are \( I_S = \) ________ A....	1.5
15	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the circuit shown in figure, the potential at point \( a \) is Choices A. 0 B. 5V C. -5V D. 11V	C
32	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: For the BJT in the amplifier shown in <image>, \( V_{BE} = 0.7V \), \( kT/q = 26mV \). Assume the BJT output resistance (\( r_o \)) is very high and the base current is negligible. The capacitors are also ass...	A
43	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: In the circuit shown in figure, when the value of resistor \( R \) is () \Omega, the voltage is \( U_0 = 4V \).	12
48	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the circuit shown in figure, the current \( I \) is ( ) Choices A. 3A B. -3A C. 5A D. -5A	D
49	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: The input impedance, \(Z_{in}(s)\) for the network shown is Choices: A. \(\frac{23s^2 + 46s + 20}{4s + 5}\) B. \(6s + 4\) C. \(7s + 4\) D. \(\frac{25s^2 + 46s + 20}{4s + 5}\)	A
51	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: In the circuit shown in figure. The voltage \( U \) across the resistor is ()V.	2
52	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the circuit shown in figure, the current \( I \) is Choices A. 0.2 mA B. 0.8 mA C. 1 mA D. 1.2 mA	D
58	Hint: Please answer the question requiring a floating-point number with two decimal place and provide the final value, e.g., 1.23, 1.34, 1.45, at the end. Question: Calculate current I\(_3\) in this Darlington pair circuit (shown in this schematic in conventional flow notation), assuming a typical forward base-emitter...	17.92
66	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: The single phase equivalent circuit of a three-phase, four pole induction motor is shown in Figure 1. For the purposes of this problem we will assume armature...	48
69	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: In the circuit shown in figure, the equivalent resistance between terminals A and B is ( ) Ω.	5.4
71	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: Calculate current I\(_1\) in this Darlington pair circuit (shown in this schematic in conventional flow notation), assuming a typical forward base-emitter j...	465.8
77	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the circuit shown in figure, if \( I = 2A \), the voltage \( U \) is ( ) Choices A. \(-2V\) B. \(2V\) C. \(10V\) D. \(-10V\)	A
80	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: The <image> shows the high-frequency capacitance-voltage (C-V) characteristics of a Metal/\(SiO_2\)/silicon (MOS) capacitor having an area of \(1 \times 10^{-4} \, \text{cm}^2\). Assume that the permittivitie...	A
82	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the operational amplifier circuit shown, the output voltage \( u_0 \) is ( ). Choices A. -1V B. 0V C. 1V D. 2V	A
87	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: A monochromatic plane wave of wavelength \(\lambda = 600 \, \mu m\) is propagating in the direction as shown in the figure below. \(\vec{E}_i\), \(\vec{E}_r\), and \(\vec{E}_t\) denote incident, reflected, ...	C
89	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: The input signal \( v_{in} \) shown in <image> is a 1 kHz square wave voltage that alternates between +7 V and -7 V with a 50% duty cycle. Both transistors have the same current gain, which is large. The circ...	B
90	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the ideal operational amplifier circuit shown in figure, the current \( I \) is ( ) Choices A. -1mA B. 0 C. 1mA D. Unable to determine	B
101	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: In the circuit shown in figure, the forward voltage of LED1 is 1.7V, and the forward voltage of diode VD1 is 0.7V. Find the current flowing through the LED. T...	9.3
104	Hint: Please answer the question requiring an integer answer and provide the final value, e.g., 1, 2, 3, at the end. Question: As shown in the figure, \( R_1 = R_2 \), the open-circuit voltage between \( A \) and \( B \), \( U_{AB} \) is ______V.	10
109	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the circuit shown in the figure, the potential at point A is ( ). Choices A. 10V B. 14V C. 18V D. 20V	B
117	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In the circuit shown in figure, if the diodes \( D_1, D_2, D_3 \) are ideal components, then the output voltage \( u_o \) is ( ). Choices A. 0V B. -6V C. -18V D. +12V	A
119	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: For the operational amplifier circuit shown, the output saturation voltages are ±15V. The upper and lower threshold voltages for the circuit are, respectively, _______. Choices: A. +5V and -5V B. +7V and -...	B
120	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: In the circuit shown in figure, if the voltage across \( R \) is 10 V, then \( R = \) ______ Ω.	5
121	Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end. Question: In Figure shown in <image>, a silicon is carrying a constant current of 1 mA. When the temperature of the diode is 20°C, \( V_D \) is found to be 700 mV. If the temperature rises to 40°C, \( V_D \) becomes ap...	B
124	Hint: Please answer the question requiring a floating-point number with one decimal place and provide the final value, e.g., 1.2, 1.3, 1.4, at the end. Question: In the circuit shown in <image>, the duty ratio of switch \( S \) is 0.4. If the inductor and capacitor are sufficiently large to ensure continuous inductor c...	1

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