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Practice Quiz in BJT and FET Frequency Response Part 1

(Last Updated On: February 3, 2020)

Practice Quiz in BJT and FET Frequency Response

This is the Online Practice Quiz in BJT and FET Frequency Response Part 1 from the book, Electronic Devices and Circuit Theory 10th Edition by Robert L. Boylestad. If you are looking for a reviewer in Electronics Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

Start Part I of the Online Practice Quiz

Quiz in BJT and FET Frequency Response

Question 1. Determine the break frequency for this circuit.

clip_image002_thumb4

A. 15.915 Hz

B. 159.15 Hz

C. 31.85 Hz

D. 318.5 Hz


Question 2. In the input RC circuit of a single-stage BJT, by how much does the base voltage lead the input voltage at the cut-off frequency in the low-frequency region?

A. About 0º

B. 45º

C. About 90º

D. None of these


Question 3. What is the ratio of the capacitive reactance XCS to the input resistance RI of the input RC circuit of a single-stage BJT amplifier at the low-frequency cut-off?

A. 0.25

B. 0.50

C. 0.75

D. 1.0


Question 4. Which of the following capacitors is (are) included in Ci for the high-frequency region of a BJT or FET amplifier?

A. Input wiring capacitance clip_image005_thumb

B. The transition capacitance (clip_image006_thumb)

C. Miller capacitance clip_image007_thumb

D. All of these


Question 5. An amplifier rated at 30-W output is connected to a 5-Ω speaker. Calculate the input power required for full power output if the power gain is 20 dB.

A. 3 mW

B. 30 mW

C. 300 mW

D. 3 W


Question 6. What magnitude voltage gain corresponds to a decibel gain of 50?

A. 31.6238

B. 316.228

C. 3162.38

D. 31623.8


Question 7. In the ________-frequency region, the capacitive elements of importance are the interelectrode (between terminals) capacitances internal to the active device and the wiring capacitance between the leads of the network.

A. Low

B. Mid

C. High

D. All of these


Question 8. An amplifier rated at 30-W output is connected to a 5-Ω speaker. Calculate the input voltage for the rated output if the amplifier voltage gain is 20 dB.

A. 1.225 mV

B. 12.25 mV

C. 122.5 mV

D. 1.225 V


Question 9. For the low-frequency response of a BJT amplifier, the maximum gain is where ________ .

A. RB = 0 Ω

B. RC = 0 Ω

C. RE = 0 Ω

D. None of these


Question 10. logea = _____ log10a

A. 2.3

B. 2.718

C. e

D. 1.414

More Practice Quiz in BJT and FET Frequency Response

Practice Quiz Part 1

Practice Quiz Part 2

Practice Quiz Part 3

Practice Quiz Part 4

Practice Quiz Part 5

Practice Quiz Part 6

See: Complete List of Practice Quizzes

Note: After taking this particular quiz, you can proceed to check all the topics.

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