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1. What does the abbreviation "LED" stand for? a. Light Emitting Diode b. Low Emission Diode c. Liquid Emission Detector d. Long Echo Delay 2. What is the most useful characteristic of a Zener diode? a. A constant current drop under conditions of varying voltage b. A negative resistance region c. A constant voltage drop under conditions of varying current d. An internal capacitance that varies with the applied voltage 3. Which of the following devices or circuits changes an alternating current into a varying direct current signal? a. Transformer b. Amplifier c. Reflector d. Rectifier

1. What does the abbreviation "LED" stand for? a. Light Emitting Diode b. Low Emission Diode c. Liquid Emission Detector d. Long Echo Delay 2. What is the most useful characteristic of a Zener diode? a. A constant current drop under conditions of varying voltage b. A negative resistance region c. A constant voltage drop under conditions of varying current d. An internal capacitance that varies with the applied voltage 3. Which of the following devices or circuits changes an alternating current into a varying direct current signal? a. Transformer b. Amplifier c. Reflector d. Rectifier

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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MULTIPLE CHOICE: Put the letter of the best answer on the space given. 1. What does the abbreviation "LED" stand for? a. Light Emitting Diode b. Low Emission Diode c. Liquid Emission Detector d. Long Echo Delay 2. What is the most useful characteristic of a Zener diode? a. A constant current drop under conditions of varying voltage b. A negative resistance region c. A constant voltage drop under conditions of varying current d. An internal capacitance that varies with the applied voltage 3. Which of the following devices or circuits changes an alternating current into a varying direct current signal? a. Transformer b. Amplifier c. Reflector d. Rectifier 4. At room temperature, the current in an intrinsic semiconductor is due to: а. Holes b. Electrons c. Ions d. Holes and electrons 5. When a voltage is applied to a semiconductor crystal, then the free electrons will flow: a. Towards positive terminal b. Towards negative terminal c. Either towards positive terminal or negative terminal d. Towards positive terminal for 1 ms and towards negative terminal for the next 1 ms 6. The number of doped regions in PIN diode is: а. 1 b. 3 с. 2 d. 1 or 2 7. A silicon (PN) junction at a temperature of 20°C has a reverse saturation current of 10 pico ampere. The reverse saturation current at 40°C for the same bias is approximately: а. 30 рА b. 40 pA с. 50 рА d. 60 pA
Transcribed Image Text:MULTIPLE CHOICE: Put the letter of the best answer on the space given. 1. What does the abbreviation "LED" stand for? a. Light Emitting Diode b. Low Emission Diode c. Liquid Emission Detector d. Long Echo Delay 2. What is the most useful characteristic of a Zener diode? a. A constant current drop under conditions of varying voltage b. A negative resistance region c. A constant voltage drop under conditions of varying current d. An internal capacitance that varies with the applied voltage 3. Which of the following devices or circuits changes an alternating current into a varying direct current signal? a. Transformer b. Amplifier c. Reflector d. Rectifier 4. At room temperature, the current in an intrinsic semiconductor is due to: а. Holes b. Electrons c. Ions d. Holes and electrons 5. When a voltage is applied to a semiconductor crystal, then the free electrons will flow: a. Towards positive terminal b. Towards negative terminal c. Either towards positive terminal or negative terminal d. Towards positive terminal for 1 ms and towards negative terminal for the next 1 ms 6. The number of doped regions in PIN diode is: а. 1 b. 3 с. 2 d. 1 or 2 7. A silicon (PN) junction at a temperature of 20°C has a reverse saturation current of 10 pico ampere. The reverse saturation current at 40°C for the same bias is approximately: а. 30 рА b. 40 pA с. 50 рА d. 60 pA
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