electronics-transistors-and-applications Related Question Answers
2. In a class B push-pull amplifier, the transistors are biased slightly above cutoff to avoid
3. The depletion-mode MOSFET
4. Three different points are shown on a dc load line. The upper point represents the
5. Which of the following conditions are needed to properly bias an npn transistor amplifier?
6. Often a common-collector will be the last stage before the load; the main function of this stage is to
7. In order for feedback oscillators to have any practical value, the gain has to be
8. To get a negative gate-source voltage in a self-biased JFET circuit, you must use a
9. If the drain, source, and channel of a MOSFET are all a p-type material, and it operates in both modes, this is an n-channel D-MOSFET.
10. A practical CE amplifier has the input on the base and the output taken off the emitter.
12. Base currents are usually small because of the physical construction of the thin and lightly doped base.
14. A certain amplifier has a voltage gain of 210. That gain expressed in decibels is 46.4 dB.
15. A decrease in base current of a CE amplifier causes the voltage measured between the emitter and the collector to increase.
16. In an n-type JFET, current will flow when a positive voltage is applied to the drain and a negative voltage is applied to the source.
17. An essential requirement of a feedback oscillator is a phase shift around the feedback loop of 360°.
18. The gate-source junction of a JFET must be ________ for proper linear operation.
19. The ___ oscillator takes advantage of the piezoelectric effect.
20. In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the product of Av × B equals_______.
22. The power gain (Ap) of any transistor amplifier circuit equals the ___________.
23. A(n) ___ has a conductive channel only when it is biased properly.
24. Fill up the blanks using suitable choice: Wash your hands ......... water.?
25. The collector current in a class A amplifier flows for ________ of the ac input signal.
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