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26404-11 Basic Electronic Theory

1. What is the average number of valence electrons in a conductor atom?

Question 1 of 30

2. In the figure above, the lead marked C is the transistor ________.

Question 2 of 30

3. The difference between an N -channel and a P-channel JFET is ________.

Question 3 of 30

4. In order to permit the emergence of the maximum number of photons in an LED, the conducting surface ________.

Question 4 of 30

5. The two basic types of diodes are the silicon and the ________.

Question 5 of 30

6. On a transistor, control voltages are applied to the ________.

Question 6 of 30

7. The schematic symbol for an LED is the same as that of a diode with the addition of a(n) ________.

Question 7 of 30

8. One end of a diode has a beveled end which indicates that it is the ________.

Question 8 of 30

9. The applied voltage does not have to exceed the breakover voltage in order for conduction to begin on a(n) ________.

Question 9 of 30

10. The figure above shows the electrical symbol for a(n) ________.

Question 10 of 30

11. Which of the following is an excellent conductor but too expensive to use on a large scale?

Question 11 of 30

12. Which of the following can be thought of as an AC switch?

Question 12 of 30

13. In the figure above, the lead marked A is the transistor ________.

Question 13 of 30

14. How many diodes are required to form a bridge rectifier?

Question 14 of 30

15. When possible, transistor casings will have some marking to indicate ________.

Question 15 of 30

16. How many diodes are required to convert three-phase AC power to high-efficiency DC power?

Question 16 of 30

17. A transistor is made by joining how many layers of semiconductor material?

Question 17 of 30

18. The process of giving off light by applying an electrical source of energy is called ________.

Question 18 of 30

19. High-power transistors are manufactured in which configuration?

Question 19 of 30

20. The point at which avalanche breakover occurs in a diode is known as the ________.

Question 20 of 30

21. When used in a circuit, an LED is generally operated at about ________.

Question 21 of 30

22. An SRC is made from adjoining layers of semiconductor material in the ________.

Question 22 of 30

23. Convert AC power to DC power using ________.

Question 23 of 30

24. What semiconductor material comprises the base of an NPN transistor?

Question 24 of 30

25. Which of the following can be viewed as a diac with a gate terminal added?

Question 25 of 30

26. Silicon is widely used as a semiconductor because it ________.

Question 26 of 30

27. The difference between an SCR and a diode is that an SCR ________.

Question 27 of 30

28. What is the name given to the areas where P -type materials join N-type materials to form a diode?

Question 28 of 30

29. Which of the following makes the best conductor?

Question 29 of 30

30. How many diodes are required to form a full-wave AC rectifier circuit?

Question 30 of 30


 

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