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Chapter 8 BASIC FET CIRCUITS MCQs

1. . Ideal maximum voltage for common drain amplifier is _________

(A) 0


(B) 0.5


(C) 1


(D) 2




2. . Input resistance of common gate of the amplifier is __________

(A) extremely low


(B) infinity


(C) zero


(D) extremely high




3. . A common gate amplifier has _______

(A) high input impedance


(B) low input impedance


(C) infinite input impedance


(D) no impedance




4. . The drain of FET is analogous to BJT

(A) Collector


(B) Emitter


(C) Base


(D) Drain




5. . If the reverse bias on the gate of a JFET is increased, then width of the conducting channel _________

(A) none of the above


(B) is increased


(C) remains the same


(D) is decreased




6. . In which of the following configuration does a MOSFET works as an amplifier?

(A) Common Source (CS)


(B) Common Gate (CG)


(C) All of the mentioned


(D) Common drain (CD)




7. . The MOSFET combines the areas of _______ & _________

(A) semiconductor & TTL


(B) field effect & MOS technology


(C) mos technology & CMOS technology


(D) none of the mentioned




8. . The arrow on the symbol of MOSFET indicates

(A) that it is a N-channel MOSFET


(B) the direction of electrons


(C) the direction of conventional current flow


(D) that it is a P-channel MOSFET




9. . In the internal structure of a MOSFET, a parasitic BJT exists between the

(A) source & drain terminals


(B) source & gate terminals


(C) drain & gate terminals


(D) there is no parasitic BJT in MOSFET




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