Day 624: JEE Mains Physics

1. A.
   External input is necessary to sustain ac signal in output.
2. B.
   A portion of the output power is returned back to the input.
3. C.
   Feedback can be achieved by LR network.
4. D.
   The base-collector junction must be forward biased.

Tap an option to check your answer.

1. A.
   Both statement I and statement II are correct
2. B.
   Both statement I and statement II are incorrect
3. C.
   Statement I is correct but statement II is incorrect
4. D.
   Statement I is incorrect but statement II is correct.

Tap an option to check your answer.

1. A.
   Statement I is true but Statement II is false
2. B.
   Statement I is false but Statement II is true
3. C.
   Both Statement I and Statement II are true
4. D.
   Both Statement I and Statement II are false

Tap an option to check your answer.

1. A.
   $1:2$
2. B.
   $5:1$
3. C.
   $1:40$
4. D.
   $20:1$

Tap an option to check your answer.