When a relay-logic Wired-Exclusive-OR gate, formed with the combination NC — NO contacts of two relays, is employed in a motor control circuit, and when both controlling relays are at-rest, or when both controlling relays are activated, the relay-logic output, taken at the common node forming the OR gate of the two wired-AND gate outputs, is ____________ volts.
A) none of the answers
B) 120
C) zero
D) either zero or 120
Show Answer
Answer:C
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