Relay-contact Exclusive-NOR gates can be formed using either just two control relays, or with three control relays.
When two control relays are configured with a set of NC and a set of NO relay contacts, and the NO relay contacts on one control relay are wired in series with the NO relay contacts on the other control relay in the same rung (control line) of a ladder diagram, and the NC relay contacts on one control relay are wired in series with the NC relay contacts on the other control relay in a second separate parallel rung with the two parallel rungs converging or connected to a common rung on their load side in the ladder diagram, a Wired Exclusive-NOR gate is formed.
A) True
B) False
Show Answer
Answer:A
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