Electronics and Communication Engineering - Analog Electronics - Discussion
Discussion Forum : Analog Electronics - Section 1 (Q.No. 25)
25.
Negative feedback reduces noise originating at the amplifier input.
Answer: Option
Explanation:
It has no effect on noise originating at amplifier input.
Discussion:
8 comments Page 1 of 1.
Pankhuri Saxena said:
8 years ago
The negative feedback REDUCES THE NOISE GENERATED WITHIN THE AMPLIFIER only. The noise present at the input of the amplifier is EXTERNAL Noise. And the negative feedback DOES NOT have any effect on the external noise. Such interferences can be minimized by using other methods like careful shielding, Good low resistances to ground within the amplifier to reduce pickup, decoupling, etc.
Hence answer is False. Option B.
Hence answer is False. Option B.
(1)
Ajit dubey said:
9 years ago
Of course, it has the effect on noise reduction. As gain decrease, bandwidth increase which further settles down the noise. Correct me if am wrong.
Gouri said:
9 years ago
Yes, your right @Ajit Dubey.
It reduces noise.
It reduces noise.
Shalini said:
8 years ago
Yes, you are right @Ajit Dubey.
Ram said:
8 years ago
Yeah! it reduces noise.
Jitendra said:
8 years ago
It will reduce noise.
Durgesh byahut said:
6 years ago
Really awesome, thanks @Pankhuri.
Santosh Gupta said:
4 years ago
Thanks @SaxenA.
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