FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

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Question E6F03

From subelement E6 - E6F

E6F03
Answer: D

What is the most common configuration of an optoisolator or optocoupler?

AA lens and a photomultiplier
BA frequency-modulated helium-neon laser
CAn amplitude-modulated helium-neon laser
DAn LED and a phototransistor