AIPMT MAIN2008Physics-Electronics
AIPMT MAIN 2008 Physics Amplifiers MCQ Question
Type: MCQ-numerical-Medium
The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be
A
100
B
90
C
10
D
1.25
Correct Answer
Option A
Detailed Explanation
The voltage gain without feedback is calculated using the formula A = A₀/(¹⁻ βA₀), where A₀ is the gain with feedback and β is the feedback factor. Solving gives A = 100.
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