MDCAT Physics Electronics Test Online

Physics Electronics MCQS Online Test

MDCAT Physics Electronics Chapter Online Test

Total Questions: 177
Time Allowed: 60 Minutes
Total Marks: 177
How to Attempt Test: Please choose the right Option in MCQ-type question.
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1. N-type crystal is

2. The potential difference across the depletion region of silicon is

3. Reverse bias applied on a junction diode

4. Depletion region of a junction is formed

5. Non-inverting amplifier circuits have

6. When NPN transistor is used as an amplifier

7. In the p-type semi-conductor the majority and minority charge carriers are respectively

8. When a semiconductor is continuously heated, then value of its resistance

9. A single transistor can be used to build which of the following digital logic gates?

10. To obtain a p-type germanium semiconductor, it must be doped with

11. The part of a transistor which is most heavily doped to produce large number of majority carriers is

12. A p-n junction has a thickness of the order of:

13. Zener breakdown in a semiconductor diode occurs when

14. In a P-type semiconductor

15. A n-p-n transistor conducts when

16. Semi-conductor germanium and silicon are

17. In semiconductors at a room temperature

18. The electrical circuit used to have smooth DC output from a rectifier circuit is called

19. Photodiode is used for

20. Copper and germanium are cooled to 70 K from room temperature, then

21. p-type crystal of a p-n junction diode is connected to a positive terminal of battery and n-type crystal connected to negative terminal of battery

22. The energy band gap is maximum in

23. The impurity atoms with which a pure silicon should be doped to make a p-type semiconductor is

24. At room temperature, a p-type semi-conductor has

25. When n-type of semiconductor is heated,


 

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