The two important advantages of a JFET are _________________?
Correct answer: A. high input impedance and square-law property
- A. high input impedance and square-law property
- B. inexpensive and high output impedance
- C. low input impedance and high output impedance
- D. none of the above
Explanation
A JFET combines very high input impedance with a square-law drain-current characteristic in its active region. The high impedance comes from the reverse-biased gate junction, while the square-law behavior is useful in amplification and control.
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
Which of the following devices has the highest input impedance ?
_____________ has the lowest noise-level?
The pinch-off voltage in a JFET is analogous to _____________ voltage in a vacuum tube?
In a JFET, when drain voltage is equal to pinch-off voltage, the depletion layers ______________?
A JFET has high input impedance because _________________?
A JFET has ____________ power gain?