Electronics and Communication Engineering - Analog Electronics

26.
Two identical FETs, each characterised by the parameters gm and rd are connected in parallel. The composite FET is then characterised by the parameters
and 2rd
and
2gm and
2gm and 2rd
Answer: Option
Explanation:
No answer description is available. Let's discuss.

27.

Assertion (A): If power gain doubles the power gain increases by 3 dB

Reason (R): The bel power gain of cascaded stages is equal to sum of each bel power gain

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.

28.
The V MOS can handle __________ currents than a conventional MOSFET.
much lower
almost same
almost half
much larger
Answer: Option
Explanation:
No answer description is available. Let's discuss.

29.

Assertion (A): A resistor is a passive load and a transistor is an active load

Reason (R): Op-amp is mostly used in feedback mode

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.

30.
Which mode is usually preferred for cascading?
CE
CB
CC
Any of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.