Inverter Logic Level

Correct Answer

C — HIGH or 1

Concept and Reasoning

An inverter implements logical NOT. Therefore a LOW input is logic 0 and its complement at the output is logic 1, i.e. HIGH. Hence option C is correct.

Calculation / Key Relation

Y=Ā

A=0 → Y=1

Exam Takeaway

NOT simply reverses the logic state: 0↔1.

Common Mistake

Keep HIGH paired with logic 1 and LOW with logic 0.