Semiconductor Devices PYQs Set 12 (PDF)

Set 12 of 16 · Questions 331-360 of 467

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Mere Teacher · Previous Year Questions NEET Physics · Semiconductor Devices · Set 12 (Q331-360)
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331. $In the following common emitter configuration an n‐p‐n transistor with current gain β = 100 is used. The output voltage of the amplifier will be [2003]$ (1) $10 mV$ (2) $0.1 V$ (3) $10 V$ (4) $1.0 V$ 332. $Identify the correct truth table of the given logic circuit.$ (1) $A B Y 001010101110$ (2) $A B Y 001011101110$ (3) $A B Y 000011101110$ (4) $A B Y 000010101110$ 333. $The output waveform of the given logical circuit for the following inputs A and B as shown below, is:$ (1) (2) (3) (4) 334. $The correct truth table for the given input data of the following logic gate is :$ (1) $A B C D Y 11010001101010111111$ (2) $A B C D Y 11010001111010111111$ (3) $A B C D Y 11011001101010011111$ (4) $A B C D Y 11011001101010111110$ 335. $A 220 V A.C. supply is comected between points A and B as shown in tigure. What will be the potential difference V across the capacitor?$ (1) $0$ (2) $2202 V$ (3) $220 V$ (4) $110 V$ 336. $Which of the following circuits has the same output as that of the given circuit?$ (1) (2) (3) (4) 337. $In the following digital circuit, what will be the output at 'Z', when the input (A, B) are (1,0), (0, 0), (1, 1, ), (0,1)$ (1) $1,1,0,1$ (2) $0,0,1,0$ (3) $1,0,1,1$ (4) $0,1,0,0$ 338. $The circuit shown below contains two ideal diodes, each with a forward resistance of 50Ω. If the battery voltage is 6 V, the current through the 100Ω resistance (in Amperes) is :$ (1) $0.036$ (2) $0.020$ (3) $0.027$ (4) $0.030$ 339. $Which of the following depicts the output of the full wave rectifier with capacitor filter for the following AC input?$ (1) (2) (3) (4) 340. $The Boolean expression of the circuit given in figure is$ (1) $Y=A\cdotB$ (2) $Y=A'+B$ (3) $Y=A+B$ (4) $Y=A+B'$ 341. $If the diodes are ideal in the circuit given below, then the current through the cell is$ (1) $4 A$ (2) $1.5 A$ (3) $2 A$ (4) $3 A$ 342. $In the following circuit, the reading of the ammeter will be (Take Zener breakdown voltage = 4 V)$ (1) $60 mA$ (2) $80 mA$ (3) $10 mA$ (4) $24 mA$ 343. $To get an output Y = 1 from the circuit shown below the input must be A B C$ (1) $0 1 0$ (2) $0 0 1$ (3) $1 0 1$ (4) $1 0 0$ 344. $In the given circuit if the power rating of Zener diode is 10 mW, the value of series resistance R_{s} to regulate the input unregulated supply is:$ (1) $5 kΩ$ (2) $10Ω$ (3) $1 kΩ$ (4) $None of these$ 345. $Assuming that the junction diode is ideal, the current in the arrangement shown in figure is$ (1) $30 mA$ (2) $40 mA$ (3) $20 mA$ (4) $10 mA$ 346. $In a common emitter amplifier circuit using an n-p-n transistor, the phase difference between the input and the output voltages will be:$ (1) $180°$ (2) $45°$ (3) $90°$ (4) $135°$ 347. $The diode shown in the circuit is a silicon diode. The potential difference between the points A and B will be [2013]$ (1) $6 V$ (2) $0.6 V$ (3) $0.7 V$ (4) $0 V$ 348. $The given electrical network is equivalent to: [2017]$ (1) $OR gate$ (2) $NOR gate$ (3) $NOT gate$ (4) $AND gate$ 349. $The given circuit has two ideal diodes connected as shown in the figure. The current flowing through the resistance R_{1} will be [2016]$ (1) $1.43 A$ (2) $3.13 A$ (3) $2.5 A$ (4) $10.0 A$ 350. $The figure represents a voltage regulator circuit using a Zener diode. The breakdown voltage of the Zener diode is 6 V and the load resistance is, R_{L} = 4k. The series resistance of the circuit is R_{i} = 1 k. If the battery voltage V_{B} varies from 8 V to 16 V, what are the minimum and maximum values of the current through Zener diode?$ (1) $0.5 mA; 6 mA$ (2) $1 mA;8.5 mA$ (3) $0.5 mA; 8.5 mA$ (4) $1.5 mA; 8.5 mA$ 351. $The following figure shows a logic gate circuit with two inputs A and B and the output C . The voltage waveforms of A, B and C are as shown below The logic circuit gate is [2006]$ (1) $AND gate$ (2) $NAND gate$ (3) $NOR gate$ (4) $OR gate$ 352. $The output voltage in the following circuit is (Consider ideal diode case)$ (1) $0 V$ (2) $+5 V$ (3) $-5 V$ (4) $10 V$ 353. $For the circuit shown below, calculate the value of I_{z} :$ (1) $25 mA$ (2) $0.15 A$ (3) $0.1 A$ (4) $0.05 A$ 354. $A 5 V battery is connected across the points X and Y . Assume D_{1} and D_{2} to be normal silicon diodes. Find the current supplied by thebattery if the + ve terminal of the battery is connected to point X .$ (1) $\sim 0.86 A$ (2) $\sim 0.5 A$ (3) $\sim 0.43 A$ (4) $\sim 1.5 A$ 355. $Consider the junction diode as ideal. The value of current flowing through AB is: [2016]$ (1) $0 A$ (2) $1 0^{- 2} A$ (3) $1 0^{- 1} A$ (4) $1 0^{- 3} A$ 356. $The correct boolean operation represented by the circuit diagram drawn is [NEET 2019]$ (1) $OR$ (2) $NAND$ (3) $NOR$ (4) $AND$ 357. $In the given figure, a diode D is connected to an external resistance R = 100Ω and an emf of 3. 5 V . If the barrier potential developed across the diode is 0.5 V, the current in the circuit will be: [2015 Re]$ (1) $35 mA$ (2) $30 mA$ (3) $40 mA$ (4) $20 mA$ 358. $For the given logic gate circuit, which of the following is the correct truth table?$ (1) $n m z 000011110101$ (2) $n m z 001010111100$ (3) $n m z 001010110100$ (4) $n m z 001011110100$ 359. $For a given transistor amplifier circuit in CE configuration V_{CC ‘} = 1 V, R_{C} = 1 kΩ, R_{b} = 100 kΩ and β = 100 . Value of base current I_{b} is$ (1) $I_{b} = 1.0 μA$ (2) $I_{b} = 0.1 μA$ (3) $I_{b} = 100 μA$ (4) $I_{b} = 10 μA$ 360. $What will be the input of A and B for the Boolean expression (A + B) \cdot (A \cdot B) = 1 [2015]$ (1) $0, 0$ (2) $0, 1$ (3) $1, 0$ (4) $1, 1$