MOSFET Amplifier Question & Answers October 10, 2022 By WatElectronics This article lists 50 MOSFET Amplifier MCQs for engineering students. All the MOSFET Amplifier Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the MOSFET Amplifier. A MOSFET is an electrical device abbreviated as Metal Oxide Field Effect Transistor. This device comprises 3 main terminals namely source, drain and gate; out of which the gate terminals voltage assists in finding out the device conductivity. In other words, varying the voltage varies the conductivity of the device. They are classified as Enhancement type and depletion type MOSFET of either NMOS or PMOS. MOSFET operates in saturation/active region and provides a perfect Q-based point. The voltage gain of a MOSFET Amplifier includes 1/gm. Where the gm is the gain. The advantages of a MOSFET amplifier include minimum losses, max speed, and minimum power consumption. The disadvantages of the MOSFET Amplifier include the cost of design and minimum gain. The applications of MOSFET amplifiers include RF, sound systems, and choppers. 1). Which of the following metric of a wave does an amplifier amplifies? Frequency Amplitude Phase All the above None Hint 2). Which of the following are the applications of an amplifier? Record player CD player Equalizers All the above None Hint 3). In which of the following region does MOSFET as an amplifier conducts? Ohmic Non-ohmic Saturation Non-saturation None Hint Read more about MOSFET 4). Which of the following are the components of MOSFET Amplifier? Source Drain Load All the above None Hint 5). In which of the following direction does MOSFET Amplifier biases? One Two Multi No None Hint 6). Which of the following component in a MOSFET Amplifier is responsible for voltage division and distribution? Resistors Capacitors Inductors All the above None Hint 7). Which of the following are the classification of MOSFET amplifier? Common Source Common Gate Common drain All the above None Hint 8). Which of the following is the voltage gain of a MOSFET Amplifier? 1/gm -gm gm -1/gm None Hint 9). Which of the following are the terminals of MOSFET Amplifier? Source Drain Gate All the above None Hint 10). The input based impedance of a common Gate MOSFET is ____? High Low Zero Minimum None Hint MOSFET Amplifier MCQs for Exams 11). The input based impedance of a common source MOSFET is ____? High Low Zero Minimum None Hint 12). The input based impedance of a common drain MOSFET is ____? High Low Zero Minimum None Hint 13). The value of transconductance of a MOSFET Amplifier is? Less High Maximum Zero None Hint 14). Which of the following are the applications of MOSFET amplifiers? RF Sound systems Choppers All the above None Hint 15). Which of the following are the advantages of MOSFET amplifier? Minimum losses Max speed Minimum power consumption All the above None Hint 16). Which of the following are the disadvantages of MOSFET Amplifier? Minimum gain Costly design High power consumption Both a and b None Hint 17). Which of the following limitations does MOSFET amplifier over comes over transistor MOSFET model? Enhanced speed Max impedance Low noise All the above None Hint 18). Which of the following type of MOSFET amplifier on addition to electronic circuit increases input voltage? P-MOSFET N-MOSFET PN-MOSFET None of the above None Hint 19). Which of the following type of effect does a MOSFET amplifier uses? Field effect Polarity effect Charge effect None of the above None Hint 20). Which of the following terminal’s voltage of a MOSFET amplifier determines the device conductivity? Gate Drain Source Both a and b None Hint MOSFET Amplifier MCQs for Quiz 21). Which of the following are the components of BJT? Base Emitter Collector All the above None Hint 22). Which of the terminals of MOSFET does not have direct connection? Gate - Channel Source- Gate Source-channel Source-Drain None Hint 23). Which of the following terminal of MOSTFET is electrically insulated? Source Gate Drain Both a and b None Hint 24). In which of the following region does N-Mosfet Amplifier biases? Saturation Non-saturation Non-ohmic Both a and c None Hint 25). N-MOSFET is also called? IGFET MFET PFET NFET None Hint 26). Abbreviate IGFET? Insulated Gate Field Effect Transistor Insulated Gate Field Effect Triode Insulated Gun Field Effect Transistor Insulated Gate Field Affect Transistor None Hint 27). Which of the following are the types of MOSFETs? Depletion type based MOSFET Enhancement type based MOSFET Non-Saturation type based MOSFET Both a and b None Hint 28). What is the gate to source voltage value of a MOSFET when in depletion mode? 0V 5V 12V 15V None Hint 29). The term ___ is defined as connectivity between drain and source? Saturation Depletion Ohmic All the above None Hint 30). Which of the following substance is used in MOSFET for providing insulation property? Silicon Oxide Nitrogen Carbon All the above None Hint MOSFET Amplifier MCQs for Students 31). Which of the following is the formula for current drain equation of MOSFET Amplifier in saturation based region? ID = k * (VGS – Vth) ^2 ID = 1/k * (VGS – Vth) ^2 ID = -k * (VGS – Vth) ^2 ID = ek * (VGS – Vth) ^2 None Hint 32). Which of the following is the conduction factor of MOSFET? k=u Cox W /2L k=-u Cox W /2L k=u Cox W * 2L k=u Cox /W * 2L None Hint 33). Which of the following are the regions of characteristics of N channel MOSFET comprises of? Cut-off Saturation Linear Both a and b None Hint 34). What happens to drain current when gate to source current increases? Increases Decreases Zero Infinity None Hint 35). A FET is a ___ type of device? Electric Electronic Mechanic Both a and b None Hint 36). FET is also called? Uni-polar type transistor Bipolar type transistor Tripolar type transistor Both b and c None Hint 37). At which of the following frequencies does FET device has greater impedance? Low High Constant Zero None Hint 38).Which of the following is the first FET device invented? JFET PFET NFET MFET None Hint 39). CMOS is a ___ type of device? Conducting Semiconducting Insulating Both a and b None Hint 40). Through which of the following terminal of FET charge type carriers enter? Source Drain Gate None of the above None Hint 41). Through which of the following terminal of FET charge type carriers leave? Source Drain Gate None of the above None Hint 42). Through which of the following terminal of FET channels are modulated? Source Drain Gate None of the above None Hint 43). Which of the following are the advantages of FET transistor? Minimum noise Minimum power consumption Minimum heat dissipation All the above None Hint 44). Which of the following are the disadvantages of FET? Has minimum gain Bandwidth Maximum voltage Maximum resistance All the above None Hint 45). MOSFET controls the currents flow between ____ terminals? Source-Drain Source- Gate Drain-Gate Drain-Source-Gate None Hint 46). Which of the following is an example of MOSFET? MOSFET IRF 530N MOSFET IRF 570N MOSFET IRF 590N MOSFET IRF 630N None Hint 47). A MOSFET comprises of ___ type of amplifier? Linear Non-linear Zero Both b and c None Hint 48). ____ region is also called saturation region? Linear Non-linear Constant Both a and c None Hint 49). In which of the following operation region does MOSFET provides perfect Q based point? Saturation Cut-off Active Both a and b None Hint 50). Which of the following is the capacitance formula of MOSFET? c=1/2Pif c=-1/2Pif c=1/Pif c=-2Pif None Hint For More MCQs MOSFET Question & Answers Please fill in the comment box below. Time's up
