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Question 289

In a Class A amplifier, what percentage of the time does the amplifying device conduct?

  1. 100%Correct answer
  2. More than 50% but less than 100%
  3. 50%
  4. Less than 50%

Explanation

Class A means the device is biased so that current flows for the entire input cycle, that is 100 percent of the time, which gives the lowest distortion and the lowest efficiency. Conduction for about half the cycle or less would make it Class B or Class C.

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Question 289: In a Class A amplifier, what percentage of the time does… · FCC General Class (Element 3) · Questena