Most of the electrons in the base of an NPN transistor flow:
Most of the electrons in the base of an NPN transistor flow:
| Note: | The above multiple-choice question is for all general and Competitive Exams in India. |
Electronics and Communication Engineering
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Question: A. into the collector B. into the emitter C. out of the base lead D. into the base supply Answer» a. into the collector -
If VD is less than expected (normal) for a self-biased JFET circuit, then it could be caused by a(n)
Question: If VD is less than expected (normal) for a self-biased JFET circuit, then it could be caused by a(n)
A. open rg. B. open gate lead. C. fet internally open at gate. D. all of the above Answer» d. all of the above Note: The above multiple-choice question is for all general and Competitive Exams in India. -
What is the most important r parameter for amplifier analysis?
Question: What is the most important r parameter for amplifier analysis?
A. rb′ B. rc′ C. re′ D. none of the above Answer» c. re′ Note: The above multiple-choice question is for all general and Competitive Exams in India. -
Which of the following elements are important in determining the gain of the system in the high-frequency region?
Question: Which of the following elements are important in determining the gain of the system in the high-frequency region?
A. interelectrode capacitances B. wiring capacitances C. miller effect capacitance D. all of the above Answer» d. all of the above Note: The above multiple-choice question is for all general and Competitive Exams in India. -
An emitter-follower amplifier has an input impedance of 107 kΩ. The input signal is 12 mV. The approximate output voltage is (common-collector)
Question: An emitter-follower amplifier has an input impedance of 107 kΩ. The input signal is 12 mV. The approximate output voltage is (common-collector)
A. 8.92 v B. 112 mv C. 12 mv D. 8.9 mv Answer» c. 12 mv Note: The above multiple-choice question is for all general and Competitive Exams in India. -
You have a need to apply an amplifier with a very high power gain. Which of the following would you choose?
Question: You have a need to apply an amplifier with a very high power gain. Which of the following would you choose?
A. common-collector B. common-base C. common-emitter D. emitter- follower Answer» c. common-emitter Note: The above multiple-choice question is for all general and Competitive Exams in India. -
The Bode plot is applicable to
Question: The Bode plot is applicable to
A. all phase network B. minimum phase network C. maximum phase network D. lag lead network Answer» b. minimum phase network Note: The above multiple-choice question is for all general and Competitive Exams in India. -
When transistors are used in digital circuits they usually operate in the
Question: When transistors are used in digital circuits they usually operate in the
A. active region B. breakdown region C. saturation and cutoff regions D. linear region Answer» c. saturation and cutoff regions Note: The above multiple-choice question is for all general and Competitive Exams in India. -
A current ratio of IC/IE is usually less than one and is called
Question: A current ratio of IC/IE is usually less than one and is called
A. omega B. beta C. theta D. alpha Answer» d. alpha Note: The above multiple-choice question is for all general and Competitive Exams in India. -
the slope of a straight line is given as……..
Question: the slope of a straight line is given as……..
A. m= y1-y2/x2-x1 B. m= y2-y1/x2-x1 C. m=x2-x1/y2-y1 D. m= x1-x2/y1-y2 Answer» b. m= y2-y1/x2-x1 Note: The above multiple-choice question is for all general and Competitive Exams in India.