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Effect of cascading several amplifier stages is to
- a)reduce the overall gain
- b)reduce the overall frequency response
- c)increase the overall gain and reduce the frequency response
- d)decrease the overall gain and increase the frequency response
Correct answer is option 'C'. Can you explain this answer?
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Effect of cascading several amplifier stages is toa)reduce the overall...
Multistage amplifier:
- In practical applications, the output of a single-stage amplifier is usually insufficient, though it is a voltage or power amplifier .hence they are replaced by multi-stage amplifiers.
- In multi-stage amplifiers, the output of the first stage is coupled to the input of the next stage using a coupling device.
- These coupling devices usually be a capacitor or a transformer, this process of joining two amplifier stages using a coupling device is called cascading
- Now the overall gain is equal to the product of individual gains and hence the gain increases.
- The frequency and bandwidth gets reduced.
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Effect of cascading several amplifier stages is toa)reduce the overall...
Effect of cascading several amplifier stages:
Effect on overall gain:
- When cascading several amplifier stages, the overall gain increases. Each stage of the amplifier provides some gain to the signal passing through it. As a result, the total gain at the output of all the stages combined is higher than the gain of individual stages.
Effect on frequency response:
- Cascading several amplifier stages tends to reduce the overall frequency response. Each amplifier stage has its own bandwidth limitations, and when multiple stages are cascaded, the overall bandwidth is limited by the bandwidth of the individual stages. This can lead to a reduction in the overall frequency response of the system.
Overall impact:
- The overall effect of cascading several amplifier stages is an increase in the overall gain and a reduction in the frequency response. This means that while the signal will be amplified more, the bandwidth over which this amplification occurs may be limited compared to a single-stage amplifier.
In conclusion, cascading several amplifier stages can be beneficial in increasing the gain of a system but may come at the cost of a reduced frequency response. It is important to carefully consider these trade-offs when designing amplifier systems.
Effect on overall gain:
- When cascading several amplifier stages, the overall gain increases. Each stage of the amplifier provides some gain to the signal passing through it. As a result, the total gain at the output of all the stages combined is higher than the gain of individual stages.
Effect on frequency response:
- Cascading several amplifier stages tends to reduce the overall frequency response. Each amplifier stage has its own bandwidth limitations, and when multiple stages are cascaded, the overall bandwidth is limited by the bandwidth of the individual stages. This can lead to a reduction in the overall frequency response of the system.
Overall impact:
- The overall effect of cascading several amplifier stages is an increase in the overall gain and a reduction in the frequency response. This means that while the signal will be amplified more, the bandwidth over which this amplification occurs may be limited compared to a single-stage amplifier.
In conclusion, cascading several amplifier stages can be beneficial in increasing the gain of a system but may come at the cost of a reduced frequency response. It is important to carefully consider these trade-offs when designing amplifier systems.
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Effect of cascading several amplifier stages is toa)reduce the overall gainb)reduce the overall frequency responsec)increase the overall gain and reduce the frequency responsed)decrease the overall gain and increase the frequency responseCorrect answer is option 'C'. Can you explain this answer?
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