Moderate

The open loop gain of an op-amplifier is of the order of:

Correct answer: A. 105

  • A. 105
  • B. 106
  • C. 10-5
  • D. 10-6

Explanation

The open-loop DC gain (usually referred to as AVOL and sometimes as forward gain) is the gain of the amplifier without the feedback loop being closed, hence the name "open-loop."

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A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.

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