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What do you understand by logic gate? Wh...

What do you understand by logic gate? Why is it so called? State the type of gates.

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Why a logic gate is so named

PRADEEP-ELECTRONIC DEVICES-Exercise
  1. What is a p-n junction diode? Define the term 'dynamic resistance' for...

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  2. What do you understand by decimal number system and binary number syst...

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  3. What do you understand by logic gate? Why is it so called? State the t...

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  4. Describe (i) NAND gate, (ii) NOR gate and (iii) XOR gate.

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  5. Explain how an OR gate may be constructed with AND and NOT gates. A lo...

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  6. A semiconductor has equal electron and hole concentration of 6xx10^(8)...

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  7. In a pure semiconductor, the number of conduction electrons is 6xx10^(...

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  8. A p-type semiconductor has acceptor energy level 53meV above the valen...

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  9. The electrical conductivity of a semiconductor increases when electrom...

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  10. A doped semiconductor has impurity levels 20 meV below the conduction ...

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  11. Pure Si at 500K has equal number of electron (n(e)) and hole (n(h)) co...

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  12. Find the number density of impurity atoms that must be added to a pure...

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  13. Determine the number density of donor atoms which have to be added to ...

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  14. On doping germanium with donor atoms of density 10^(17)cm^(-3), find i...

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  15. The energy of a photon of sodium light wavelength 5890 Å equals the en...

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  16. Calculate the number of states per cubic metre of sodium in 3s band. T...

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  17. Find the current produced at room temperature in a pure germanium plat...

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  18. If resistivity of pure silicon is 3000 Omega meter, and the electron a...

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  19. The V-I characteristics of a silicon diode is given in Fig .Calculate ...

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  20. A p-n junction is fabricated from a semiconductor with band gap of 3.0...

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