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 Bandwidth of amplifier is
  • a)
    Difference between upper cut-off frequency and lower cut-off frequency
  • b)
    Sum of upper cut-off frequency and lower cut-off frequency
  • c)
    Average of upper cut-off frequency and lower cut-off frequency
  • d)
    Iindependent to cut off frequency
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Bandwidth of amplifier isa)Difference between upper cut-off frequency ...
3dB bandwidth of an amplifier is the difference between upper cut-off frequency and lower cut-off frequency. The unity gain bandwidth is the difference between frequencies were gain is 1.
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Most Upvoted Answer
Bandwidth of amplifier isa)Difference between upper cut-off frequency ...
Bandwidth of amplifier
Bandwidth of an amplifier is the difference between the upper cut-off frequency and the lower cut-off frequency. This parameter is essential in determining the range of frequencies that an amplifier can effectively amplify.

Explanation:

Difference between upper cut-off frequency and lower cut-off frequency:
- The upper cut-off frequency is the frequency at which the gain of the amplifier drops to -3 dB below the mid-band gain.
- The lower cut-off frequency is the frequency at which the gain of the amplifier drops to -3 dB below the mid-band gain.
- The bandwidth of the amplifier is calculated as the difference between the upper cut-off frequency and the lower cut-off frequency.
In essence, the bandwidth represents the range of frequencies over which the amplifier can provide the desired level of amplification without significant distortion.
Therefore, in the context of amplifiers, the bandwidth is defined as the difference between the upper cut-off frequency and the lower cut-off frequency.
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Bandwidth of amplifier isa)Difference between upper cut-off frequency and lower cut-off frequencyb)Sum of upper cut-off frequency and lower cut-off frequencyc)Average of upper cut-off frequency and lower cut-off frequencyd)Iindependent to cut off frequencyCorrect answer is option 'A'. Can you explain this answer?
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