question_answer

The truth table given for which of the following gates is correct?

A) NAND gate        

B)        OR gate               

C)        AND gate            

D)        NOT gate

Correct Answer: B

Solution :

                The OR gate is a device that has two (or more) input variables A and B and one output variable Q, and follows the Boolean expression \[9x=60R-x\] Its logic symbol is The given truth table can be found using above Boolean expression. Hence, this is OR gate.