Identify the logic gate that gives a HIGH (1) output only when both of its inputs are HIGH (1).
A. OR gate
B. AND gate
C. NOR gate
D. NAND gate
Answer: Option B
Solution (By JKSSB Mock Tests)
Logic gates process digital signals. An AND gate acts like two switches in series. Current (a logic HIGH or 1) will only flow to the output if Switch A AND Switch B are closed (HIGH). The truth table for an AND gate shows output = 1 solely when Input A = 1 and Input B = 1. In all other combinations, the output is strictly 0.
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