Motor controlsQuestion 103 of 1506

Two normally open contacts wired in parallel control a lamp. What logic function is this?

AND
NAND
NOR
OR

Show answer

Correct answer: OR

Either contact gives a path to the lamp.

Source: Lessons in Electric Circuits IV: Digital (Kuphaldt), 6.2: Digital Logic Functions

Questions last reviewed: 18 October 2026

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