-- card: 80425 from stack: in
-- bmap block id: 0
-- flags: 4000
-- background id: 7720
-- name: #257
----- HyperTalk script -----
on openCard
  global group,rightone
  put 26 into group
  put "A" into rightone
  pass openCard
end openCard



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Question #26

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4BF-2.1 What is an "operational amplifier"?

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A high-gain, direct-coupled differential amplifier whose characteristics are determined by components external to the amplifier unit

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A high-gain, direct-coupled audio amplifier whose characteristics are determined by components external to the amplifier unit

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An amplifier used to increase the average output of frequency modulated amateur signals to the legal limit

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A program subroutine that calculates the gain of an RF amplifier

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Correct answer is A