The figure shows a logic circuit with two inputs $A$ and $B$ and the output $C$. The voltage wave forms across $A, B$ and $C$ are as given. The logic circuit gate is

• Correct answer
  A

  OR gate
• B

  NOR gate
• C

  AND gate
• D

  NAND gate

Solution

From the given woveforms, the following truth table can be made
This truth table is required to 'OR' gate. So, logic circuit gate is OR gate. Note The logic of the OR gate is if any of the input is one then output is one.

Hence, the correct answer is option: 'A'.