electronic-devices-dc-biasing-fets Related Question Answers

1. For what value of R2 is VGSQ equal to 1 V?





2. Which of the following is (are) true of a self-bias configuration compared to a fixed-bias configuration?





3. The input controlling variable for a(n) ________ is a current level and a voltage level for a(n) ________.





4. Through proper design, a ________ can be introduced that will affect the biasing level of a voltage-controlled JFET resistor.





5. For what value of RS can the depletion-type MOSFETs operate in enhancement mode?





6. On the universal JFET bias curve, the vertical scale labeled ________ can, in itself, be used to find the solution to ________ configurations.



7. Calculate the value of RS. Assume VGSQ = −2V.





8. Calculate the value of RD.





9. At what value of RS does the circuit switch from depletion mode to enhancement mode?





10. Which of the following current equations is true?





11. Calculate VDSQ.





12. Calculate the value of VDS.





13. Which of the following represents the voltage level of VGS in a self-bias configuration?





14. The self-bias configuration eliminates the need for two dc supplies.



15. Which of the following is a false statement regarding the dc load line when comparing self-bias and voltage-divider configurations?




16. Calculate VDS.





17. For the noninverting amplifier, one of the most important advantages associated with using a JFET for control is the fact that it is ________ rather than ________ control.



18. What are the voltages across RD and RS?





19. Depletion-type MOSFETs do not permit operating points with positive values of VGS and levels of ID that exceed IDSS.



20. Calculate the value of VDSQ.





21. What is the approximate current level in the gate of an FET in dc analysis?





22. Calculate VD.





23. Seldom are current levels measured since such maneuvers require disturbing the network structure to insert the meter.



24. In the design of linear amplifiers, it is good design practice to choose operating points that do not crowd the saturation level or cutoff regions.



25. What is the new value of RD when there is 7 V across VDS?





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