Logic gates

What is the basic purpose of logic gates in digital circuits?

• For Data storage

• • To perform arithmetic operations

• • To process analog signals

• • To perform logical operations

• What is the output of an AND gate when both of its inputs are set to 1 ?

• 0

• 1

• Cannot be determined

• • None of the above

Which logic gate has an output that is the complement of its input?

• AND gate

• OR gate

• NOT gate

• XOR gate

• What is the output of an XOR gate when both inputs are the same?

• 0

• 1

• • Cannot be determined

• • None of the above

• The output of a NAND gate is the complement of the output of which gate?

• • OR gate

• AND gate

• NOT gate

• XOR gate

What is the logical expression for a 2 input EX-OR function?

• A.B

• A+B

• A'B'+AB

• AB'+A'B

Which of the following is the correct representation of 2 input NOR gate?

• A+B

• A'B

• A.B

• A'.B'

How many input combinations will be there for a 3 input OR gate?

What is the output of a 2-input NOR gate when both inputs are set to 1

• Which logic gate produces an output of 1, only when exactly one of its inputs is 1?

• • AND gate

• • OR gate

• • XOR gate

• • NOT gate