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26404-11 Basic Electronic Theory

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

Question 1 of 30

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

Question 2 of 30

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

Question 3 of 30

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

Question 4 of 30

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

Question 5 of 30

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

Question 6 of 30

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

Question 7 of 30

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

Question 8 of 30

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

Question 9 of 30

10. Convert AC power to DC power using ________.

Question 10 of 30

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

Question 11 of 30

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

Question 12 of 30

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

Question 13 of 30

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

Question 14 of 30

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

Question 15 of 30

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

Question 16 of 30

17. Which of the following makes the best conductor?

Question 17 of 30

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

Question 18 of 30

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

Question 19 of 30

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

Question 20 of 30

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

Question 21 of 30

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

Question 22 of 30

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

Question 23 of 30

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

Question 24 of 30

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

Question 25 of 30

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

Question 26 of 30

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

Question 27 of 30

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

Question 28 of 30

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

Question 29 of 30

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

Question 30 of 30