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Class 12 Physics: Semiconductor Electronics - Materials, Devices and Simple Circuits
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MCQs on metals, conductors and semiconductors classification, intrinsic and extrinsic semiconductor, p-n junction, semiconductor diode, junction diode application, junction transistor, integrated circuits, digital electronics and logic gates.

Class 12 Physics: Semiconductor Electronics - Materials, Devices and Simple Circuits
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25 Questions

1. In a pure semiconductor crystal, if current flows due to breakage of crystal bonds, then what is the semiconductor called?
2. On which of the following does base current not depend on?
3. Which gate will a NAND gate be equivalent to when two inputs of NAND gates are shorted?
4. What is rectification?
5. Holes are charge carriers in which one of the following?
6. Which of the following gates can have only one input?
7. Crystalline solids are which of the following?
8. Choose the false statement from the following.
9. Which among the following is larger compared to the other regions of a transistor?
10. Which among the following is not easy to fabricate on an Integrated Circuit?
11. Which of the following, when added as an impurity, into the silicon, produces n-type semiconductor?
12. What is the ripple factor for a half-wave rectifier?
13. Find the value of output direct current if the peak value of output current is given as 0.095 A.
14. A piece of copper and another of germanium are cooled from room temperature to 77 K. what will impact on the resistance of each of them?
15. What is the form factor for a full-wave rectifier?
16. The manifestation of the band structure in solids is due to which of the following?
17. The n-type semiconductor is which of the following?
18. In n-type semiconductors, which one is the majority charge carriers?
19. Which of the following accounts for the presence of the potential barrier in the depletion layer?
20. Which of the following is correct about logic gates?
21. Find out the application of the diode.
22. Which of the following is true regarding ICs?
23. What is the role of SiO2 in Integrated Circuits?
24. What is an oscillator?
25. What will happen when a p-n diode is reversed-biased?

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