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A. oscillation B. amplification C. distortion D. extortion 32. Distortion is undesirable in high-fidelity amplifiers because A. it changes the sound of voice and music. B. it amplifies the sound of voice and music. C. it trips a circuit breaker. D. it cannot be heard in either speaker. 33. What is one way to minimize distortion? A. use batteries only B..

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  • A. oscillation B. amplification C. distortion D. extortion 32. Distortion undesirable in high-fidelity amplifiers
  • Electrical Engineering
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46. When working with h parameter analysis, the symbol for current gain is ________. A. bDC B. hFE C. aFED. D. D 47. What type of transistor is usually found in a simple three-terminal, gull-wing package? A. chassis mount B. printed-circuit C. surface-mount D. power 48. What is the surface-mount package called that resembles the dual-inline package and houses multiple.

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  • 46. When working with h parameter analysis, the symbol for
  • Electrical Engineering
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16. The zener diode is the backbone of A. constant current sources. B. passive filters. C. voltage regulators. D. oscillator circuits. 17. What type of bias is required for normal operation of a zener diode? A. reverse B. forward C. positive D. negative 18. What is the circuit shown in Figure 5-2 (a)? A. RZ filter B. zener regulator C. voltage doubler D. half-wave.

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  • 16. The zener diode the backbone of A. constant current sources. B.
  • Electrical Engineering
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31. If the data sheet maximum rating, collector-emitter breakdown voltage is exceeded A. current gain becomes maximum. B. the emitter will become reverse biased. C. the transistor will go into cut-off. D. the transistor will breakdown and will probably be destroyed. 32. A transistor has a power dissipation that equals ________. A. VCE x RC B. VCE.

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  • 31. If the data sheet maximum rating, collector-emitter breakdown voltage
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31. The zener follower provides the regulation of a zener diode with the increased current-handling capability of a A. common-collector circuit. B. common-emitter circuit. C. common-base circuit. D. common-follower circuit. 32. The amplifier configuration in which the input signal drives the emitter and the output signal is taken from the collector is the A. common collector. B..

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  • 31. The zener follower provides the regulation of a zener
  • Electrical Engineering
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36. Transistor saturation and cutoff regions are used in circuits referred to as ________. A. rectifiers B. filters C. switching circuits D. amplifiers 37. In a common-emitter circuit, once the base current has been calculated, collector current can be determined by multiplying base current by ________. A. alpha B. the load resistor C. maximum power rating D. beta 38. When.

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  • 36. Transistor saturation and cutoff regions used in circuits referred
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26. Examples of optoelectronic devices do not include ________. A. LEDs B. FETs C.photodiodes D.optocouplers 27. Which of the following is not an advantage of a light-emitting diode (LED)? A.low voltage B.long life C.fast on-off switching D. cost 28. LEDs have breakdown voltages that typically range from A. 3 to 5 V. B.1 to 2 V. C.6 to 10 V. D.10 to 15 V. 29..

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  • 26. Examples of optoelectronic devices do not include ________. A. LEDs B.
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41. It is very difficult to get a small output impedance with a A. common-collector amplifier. B. common-emitter amplifier. C. common-base amplifier. D. emitter-follower amplifier. 42. What is the circuit shown in Figure 9-16 (c)? A. two cascaded common-emitter amplifiers B. a small-signal amplifier C. a supplementary Darlington D. a complementary Darlington 43. What is the circuit shown in Figure.

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  • 41. It very difficult to get a small output impedance
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16. Collector-feedback bias is also called A. self-bias. B. collector follower. C. negative collector. D. voltage-divider. 17. Collector-feedback bias is still sensitive to changes in current gain, but it is used because of its A. small size. B. low cost. C. simplicity. D. complexity. 18. Emitter-feedback and collector-feedback are typically not adequate because A. there is too much negative feedback. B. there.

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  • 16. Collector-feedback bias also called A. self-bias. B. collector follower. C. negative collector. D.
  • Electrical Engineering
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41. With ambiguous troubles, the troubleshooter very often must A. replace all suspected components. B. memorize the circuit diagram. C. disconnect one suspected component and test it. D. disconnect all suspected components and apply power. 42. What should a troubleshooter do if the base, collector, and emitter voltages in a transistor circuit all measure 0.

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  • 41. With ambiguous troubles, the troubleshooter very often must A. replace
  • Electrical Engineering
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26. Semiconductor manufacturers make Darlington pairs inside a single case. What is this device known as? A. Semiconductor single case B. Darlington transistor C. power transistor D. regulator transistor 27. A Darlington connection comprised of npn and pnp transistors is called a A. stationary Darlington. B. Duo-Darlington. C. supplementary Darlington. D. complementary Darlington. 28. In conjunction with a zener diode,.

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  • 26. Semiconductor manufacturers make Darlington pairs inside a single case.
  • Electrical Engineering
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46. What would the voltage be across RL if C shorted? A.ac B.120 Vdc C.pulsating filtered dc D. zero 47. A device that keeps the current through it fixed when the voltage changes is aA. zener diode. B. current-regulator diode. C.silicon rectifier. D.tunnel diode. 48. A diode that is useful in frequency multiplier circuits is aA. snap diode. B.slope diode. C.photo.

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  • 46. What would the voltage be across RL if C
  • Electrical Engineering
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41. With a varactor diode, the more it is reversed bias, its capacitance A. decreases. B.increases. C.remains the same. D.increases to 27 µF. 42. A varactor is often connected in parallel with an inductor to form a A.bridge rectifier. B.tunnel oscillator. C. parallel resonant circuit. D. parallelogram. 43. The capacitance exhibited by a varactor diode is controlled by ________. A. voltage B.current C.parallel.

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  • 41. With a varactor diode, the more it reversed bias,
  • Electrical Engineering
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21. The type of biasing that produces the most useful results is A. forward-biasing the emitter diode and reverse-biasing the collector diode. B. reverse-biasing the emitter diode and forward-biasing the collector diode. C. forward-biasing the collector diode and reverse-biasing the base diode. D. reverse-biasing the collector diode and forward-biasing the base diode. 22. The base.

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  • 21. The type of biasing that produces the most useful
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36. The intent of emitter-feedback bias is to A. reduce the source voltage. B. swamp out the variations in current gain. C. swamp out the base current. D. increase current gain. 37. Collector-feedback bias is also called A. collector-follower bias. B. emitter-feedback bias. C. voltage-divider bias. D. self-bias. 38. Collector-feedback bias is more effective than emitter-feedback bias and is used.

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  • 36. The intent of emitter-feedback bias to A. reduce the source
  • Electrical Engineering
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