Understanding Logic Gates

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

• 1.5

• 2

• 0

• 1

How does an OR gate operate when one input is 0?

• The output is always 1 regardless of the other input.

• The output is 1 if the other input is 1; otherwise, the output is 0.

• The output is 0 if the other input is 0.

• The output is 1 if both inputs are 0.

What is the function of a NOT gate?

• The function of a NOT gate is to pass the input signal unchanged.

• The function of a NOT gate is to amplify the input signal.

• The function of a NOT gate is to invert the input signal.

• The function of a NOT gate is to combine multiple input signals.

What is the output of a NAND gate when both inputs are 1?

• -1

• undefined

• 1

• 0

How does a NOR gate behave when at least one input is 1?

• The output is 1.

• The output is undefined.

• The output is always 0 regardless of inputs.

• The output is 0.

In what scenario does an XOR gate output a 1?

• When at least one input is 1.

• When exactly one input is 1.

• When both inputs are 0.

• When both inputs are 1.

What is the truth table for an AND gate?

• | A | B | Output | |---|---|--------| | 0 | 0 | 1 | | 0 | 1 | 1 | | 1 | 0 | 1 | | 1 | 1 | 0 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 1 | | 1 | 0 | 1 | | 1 | 1 | 1 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 0 | | 1 | 0 | 0 | | 1 | 1 | 1 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 0 | | 1 | 0 | 0 | | 1 | 1 | 0 |

How can you represent an OR gate using a truth table?

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 0 | | 1 | 0 | 0 | | 1 | 1 | 1 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 0 | | 0 | 1 | 1 | | 1 | 0 | 1 | | 1 | 1 | 1 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 1 | | 0 | 1 | 0 | | 1 | 0 | 0 | | 1 | 1 | 0 |

• | A | B | Output | |---|---|--------| | 0 | 0 | 1 | | 0 | 1 | 1 | | 1 | 0 | 0 | | 1 | 1 | 0 |

What is the significance of a NOT gate in digital circuits?

• The NOT gate is significant because it allows for the inversion of binary signals, essential for building complex digital circuits.

• The NOT gate is primarily responsible for power management in circuits.

• The NOT gate amplifies binary signals for better performance.

• The NOT gate is used to store binary data in memory.

Explain the difference between NAND and AND gates.

• Both gates perform the same function and have identical outputs.

• The main difference is that an AND gate outputs true only when all inputs are true, while a NAND gate outputs false only when all inputs are true.

• An AND gate outputs true when at least one input is true.

• A NAND gate outputs true only when all inputs are false.