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What is logic gate?...

What is logic gate?

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Which logic gate is represented by the following logic gates?

The figure shows the input signal A, input signal B and output signal Y. Which logic gate does it represent ?

What is NOR gate? Write its symbol, truth table and Boolean equation.

What is NAND gate? Write its symbol, truth table and Boolean equation.

Given below are symbols for some logic gates :- The XOR gate and NOR gate respectively are :-

When the inputs of a two input logic gate are 0 and 0, the output is 1, when the inputs are 1 and 0, the output is zero. The type of logic gate …..

The output of the given logic gate is 1 when inputs A,B and C are such that :-

KUMAR PRAKASHAN-SEMICONDUCTOR ELECTRONICS : MATERIALS, DEVICES AND SIMPLE CIRCUITS -Section-D : Multiple Choice Questions (MCQs) (MCQs asked in Competitive Exams)
  1. What is logic gate?

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  2. At absolute zero temperature Si acts as ……..

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  3. The energy band gap is maximum in …….

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  4. Formation of covalent bonds in compounds exhibits …….nature.

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  5. By increasing the temperature, the specific resistance of a conductor ...

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  6. The difference in the variation of resistance with temperature in a me...

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  7. In the middle of the electron layer of a reverse biased p-n junction, ...

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  8. A piece of copper and another of germanium are cooled from room temper...

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  9. The manifestion of band structure in solids is due to …….

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  10. When p-n junction diode is forward biased ………

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  11. The electrical conductivity of a semiconductor of a semiconductor incr...

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  12. In a full wave rectifier circuit operating from 50 Hz mains frequency...

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  13. Ratio of number density of holes is (7)/(5) and ratio of their current...

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  14. Which of the following is true ?

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  15. A charge of 2 xx 10^(-2) C moves at 30 revolutions per second in a ci...

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  16. A solid which is transparent to visible light an whose conductivity in...

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  17. As shown in the following figure take A and B input waveforms. Sketch...

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  18. A logic circuit is shown in the diagram. Draw the output signal at the...

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  19. Carbon, silicon and germanium have four valence electrons each. At roo...

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  20. Figure shows electric field lines in which an electric dipole P is pla...

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  21. As shown in the following figure, take A and B input waveforms. Sketch...

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