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Question 432

What absolute voltage gain can be expected from the circuit in Figure E7-3 when R1 is 3,300 ohms and RF is 47 kilohms?

Schematic of a circuit with a triangular three-terminal component, resistor R1 at the input, and resistor RF connecting output to input.
  1. 28
  2. 14Correct answer
  3. 7
  4. 0.07

Explanation

Absolute gain of the inverting stage is RF / R1 = 47,000 Ω / 3,300 Ω = 14.2, which rounds to 14. A gain of 28 is twice that value and 7 is half of it.

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Question 432: What absolute voltage gain can be expected from the circuit… · FCC Amateur Extra Class (Element 4) · Questena