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You Are On Multi Choice Question Bank SET 1019

50951. Which of the following is (are) related to depletion-type MOSFETs?





50952. Refer to this figure. If C2 shorted, Vout would





50953. The input resistance at the gate of a FET is extremely



50954. Determine the value for RD if the ac gain is 8.





50955. Referring to this figure, calculate Zi for yos = 20 S. Assume VGSQ = −2.2V.





50956. FET amplifiers provide ________.





50957. CMOS digital switches use





50958. What is the range of gm for JFETs?





50959. Calculate gm and rd if yfs = 4 mS and yos = 15S.





50960. What limits the signal amplitude in an analog MOSFET switch?




50961. Input resistance of a common-drain amplifier is





50962. Refer to this Figure. If Vin was increased in amplitude a little, the signal voltage at the source of Q2 would





50963. Refer to this figure. If VGS = –6 V, calculate the value of RS that will provide this value.





50964. A JFET cascade amplifier employs





50965. E-MOSFETs are generally used in switching applications because





50966. For an FET small-signal amplifier, one could go about troubleshooting a circuit by ________.





50967. The E-MOSFET is quite popular in ________ applications.





50968. Referring to this figure, calculate Av if yos = 20 S.





50969. Referring to this figure, calculate Zo if yos = 40 S.





50970. In a common-source amplifier, the purpose of the bypass capacitor, C2, is to





50971. Refer to this figure. The voltage gain is





50972. Refer to this figure. If ID = 4 mA, IDSS = 16 mA, and VGS(off) = –8 V, find VDS.





50973. If ID = IDSS / 2, gm = ________ gmo.




50974. The gate-to-source voltage VGS of a(n) ________ must be larger than the threshold VGS(Th) for the transistor to conduct.





50975. ________ is the network-input impedance for a JFET fixed-bias configuration.





50976. The isolation between input and output circuits in the ac equivalent circuit is lost in a ________ configuration.





50977. ________ is the amplification factor in FET transistor amplifiers.





50978. The ________ does not support Shockley's equation.





50979. The transconductance gm ________ as the Q-point moves from Vp to IDSS





50980. rd changes from one operation region to another with ________ values typically occurring at ________ levels of VGS (closer to zero).





50981. The ________ is quite popular in digital circuits, especially in CMOS circuits that require very low power consumption.





50982. ________ configuration(s) has (have) Zo RD.





50983. The input and output signals are in phase in a ________ configuration.





50984. gm has its maximum value for a JFET at ________.





50985. The depletion MOSFET circuit has a ________ input impedance than a similar JFET configuration.





50986. ________ is the only parameter that is different between voltage-divider and fixed-bias configurations.





50987. The ________ controls the ________ of an FET.





50988. Transconductance is the ratio of changes in ________.





50989. The ________ configuration has an input impedance, which is other than RG.





50990. The range of output admittance yos for FETs is ________.





50991. The ________ configuration has the distinct disadvantage of requiring two dc voltage sources.





50992. A field-effect transistor amplifier provides excellent voltage gain with the added feature of a ________ input impedance.





50993. ________ is an undefined quantity in a JFET.





50994. The range of input impedance Zi for MOSFETs is ________.





50995. The value of gm is at its maximum gm0 at VGS equal to ________ and zero at VGS equal to ________.





50996. A ________ configuration has a voltage gain less than 1.





50997. ________ is a required step in order to calculate Zo.





50998. The input and output signals are 180º out of phase in a ________ configuration.





50999. In a class D amplifier, the output transistors are operated in a nonlinear mode.



51000. Generally, higher voltage gains can be achieved with bipolar amplifiers than with FET amplifiers.



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