Electronics, Transistors & Signals Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Spontaneous emission results in the release of how many photons?

Question 2 2. Stimulated emission results in photons that _____ .

Question 3 3. What type of radiation is released during stimulated emission?

Question 4 4. An electron that is in its ground state can undergo which of the following?

Question 5 5. What is a logic gate?

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Question 6 6. What does a computer use to store binary numbers?

Question 7 7. What does ALU stand for?

Question 8 8. How is 3 represented as information in a computer?

Question 9 9. Essentially, population inversion leads to a(n) _____ of stimulated emission.

Question 10 10. What is needed to interact with a system that is experiencing population inversion for all the electrons to drop to the lower energy state?

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Question 11 11. Which of the following describes coherent light?

Question 12 12. Which of the following correctly describes population inversion in physics?

Question 13 13. Masers are different than lasers as they emit photons that have a much lower what than lasers?

Question 14 14. Lasers and masers both emit what when electrons fall back from their excited state to their original state?

Question 15 15. LASER is an acronym for what?

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Question 16 16. Lasers have revolutionized numerous areas of technology in our everyday lives. Which is not a current application of lasers?

Question 17 17. Which of the following is a very common application of a p-n junction diode?

Question 18 18. Which position represents the positive part of the p-n junction diode?

Question 19 19. Which of the following shapes is used to represent a p-n junction diode?

Question 20 20. A p-n junction diode is a semiconductor device that _____.

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Question 21 21. What is the most common material used as a semiconductor?

Question 22 22. There are three terminals on an average transistor? Which is the switch that controls the current in the other two?

Question 23 23. What does a diode do?

Question 24 24. What defines a semiconducting material?

Question 25 25. Which option below lists the type of signal denoted by binary 1s and 0s?

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Question 26 26. Which option below lists the type of signal generated when a dog barks or a cat meows?

Question 27 27. Which option below lists the function(s) of a modem?

Question 28 28. Which option below lists the type of signal denoted by a sine wave?

Question 29 29. Absorption results in the release of how many photons?

Question 30 30. What are transistor switches?

Electronics, Transistors & Signals Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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