Exam
2
Win
Do Practice | Gain Confidence | Score High Marks
Home
Aptitude
Reasoning
Engineering
History
English
Basic Science
GK
Mock Tests
Daily Quiz
☰
Feedback Amplifier Mock Test
⏱️ 7:00
Question 1 of 7
In amplifier, the feedback is positive if
A. the input of the amplifier is ahead of the voltage fed back by a phase angle of π/4
B. the input of the amplifier is ahead of the voltage fed back by a phase difference of π/2
C. the voltage fed back to the input circuit is in phase with the signal voltage
D. the output of the amplifier is exactly in phase with the voltage fed back to the input
← Previous
Next →