A certain common-source JFET has a voltage gain of 10. If the source bypass capacitor is removed, ______________?
Correct answer: C. the voltage gain will decrease
- A. the voltage gain will increase
- B. the transconductance will increase
- C. the voltage gain will decrease
- D. the Q-point will shift
Explanation
Removing the source bypass capacitor introduces source degeneration through the source resistor, reducing the AC voltage gain. It does not significantly shift the DC Q-point because the capacitor is open for DC in either case.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Electronics and Devices
758 free Electronics and Devices MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electronics and Devices questions
In a certain common-source D-MOSFET amplifier, Vds =3.2 V r.m. and Vgs = 280 mV r.m.s. The voltage gain is_______________?
A CS JFET amplifier has a load resistance of 10 kO , RD= 820O . If gm= 5mS and Vin= 500 mV, the output signal voltage is__________________?
n a common-source JFET amplifier, the output voltage is _____________?
If load resistance in the above question (Q.49) is removed, the output voltage will_____________?
A n-channel D-MOSFET with a positive VGS is operating in _______________?
The constant-current region of a JFET lies between______________?