Understanding Logic Gates

What is the output of an AND gate when both inputs are 1?

• 1

• 0

• 1.5

• undefined

How many inputs can an OR gate have?

• An OR gate can have multiple inputs, commonly 2 or more.

• An OR gate cannot have more than 5 inputs.

• An OR gate can only have one input.

• An OR gate can have exactly 3 inputs only.

What is the truth table for a 2-input OR gate?

• Input A | Input B | Output 0 | 0 | 0 0 | 1 | 1 1 | 0 | 1 1 | 1 | 0

• Input A | Input B | Output 0 | 0 | 1 0 | 1 | 0 1 | 0 | 0 1 | 1 | 0

• Input A | Input B | Output 0 | 0 | 1 0 | 1 | 1 1 | 0 | 0 1 | 1 | 1

• Input A | Input B | Output 0 | 0 | 0 0 | 1 | 1 1 | 0 | 1 1 | 1 | 1

If the input to a NOT gate is 0, what is the output?

• 1

• -1

• 0

• 2

What is the primary function of a NAND gate?

• The primary function of a NAND gate is to output false when at least one input is true.

• The primary function of a NAND gate is to output false only when all its inputs are true.

• The primary function of a NAND gate is to output true when all its inputs are true.

• The primary function of a NAND gate is to always output true regardless of its inputs.

List one application of NAND gates in digital circuits.

• Used for memory storage in computers.

• Creating analog circuits for audio processing.

• Building blocks for creating other logic gates in digital circuits.

• Implementing power supply circuits for devices.

What is the output of a NOR gate when both inputs are 0?

• 1

• 1.5

• 0

• -1

How does a NOT gate affect the input signal?

• A NOT gate amplifies the input signal.

• A NOT gate inverts the input signal.

• A NOT gate combines the input signal with another signal.

• A NOT gate passes the input signal unchanged.

What is the truth table for a 2-input AND gate?

• Input A | Input B | Output 0 | 0 | 1 0 | 1 | 1 1 | 0 | 1 1 | 1 | 0

• Input A | Input B | Output 0 | 0 | 0 0 | 1 | 1 1 | 0 | 1 1 | 1 | 1

• Input A | Input B | Output 0 | 0 | 1 0 | 1 | 0 1 | 0 | 0 1 | 1 | 1

• Input A | Input B | Output 0 | 0 | 0 0 | 1 | 0 1 | 0 | 0 1 | 1 | 1

Explain the difference between an AND gate and a NAND gate.

• An AND gate outputs true if at least one input is true; a NAND gate outputs true if both inputs are false.

• An AND gate outputs false if both inputs are false; a NAND gate outputs false if at least one input is true.

• An AND gate outputs true if both inputs are true; a NAND gate outputs true if at least one input is false.

• An AND gate outputs true if either input is true; a NAND gate outputs true only if both inputs are true.