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When designing an RC-coupled amplifier, the utmost amount of power that can be transmitted from one stage to the next correlates to?

Question

When designing an RC-coupled amplifier, the utmost amount of power that can be transmitted from one stage to the next correlates to?

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Solution

When designing an RC-coupled amplifier, the maximum amount of power that can be transmitted from one stage to the next is related to the mid-frequency range. This is because the RC-coupled amplifier is most effective in this range, and it is where the gain of the amplifier is at its maximum.

Here are the steps to understand this:

  1. An RC-coupled amplifier is a type of amplifier where the load resistance of one stage is coupled to the next stage using a capacitor.

  2. The purpose of this coupling is to pass the AC signal from one stage to the next, while blocking any DC component.

  3. The coupling capacitor and the load resistor form an RC high pass filter, which determines the lower cut-off frequency of the amplifier.

  4. The mid-frequency range is where the gain of the amplifier is maximum and flat. This is the range between the lower and upper cut-off frequencies.

  5. Therefore, when designing an RC-coupled amplifier, the maximum amount of power that can be transmitted from one stage to the next is related to this mid-frequency range.

  6. To maximize power transmission, the amplifier should be designed such that the mid-frequency range is as wide as possible, and the gain in this range is as high as possible.

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