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Question 235

What does the term gain mean in amplifiers?

  1. The output signal voltage relative to the input signal voltage
  2. The output signal current relative to the input signal current
  3. The output signal power relative to the input signal power
  4. All these choices are correctCorrect answer

Explanation

Gain is simply the ratio of output to input, and it can be stated for voltage, for current, or for power depending on what matters in the circuit, so all three descriptions are correct. This is why a gain figure should always name which quantity it refers to.

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Question 235: What does the term gain mean in amplifiers? · FCC Technician Class (Element 2) · Questena