# Worksheet: XOR Gates

In this worksheet, we will practice determining the input and output of XOR gates in logic circuits and completing truth tables for XOR gates.

**Q1: **

The diagram shows two XOR gates connected as part of a logic circuit. The truth table shows the output for the different combinations of the inputs.

Input A | Input B | Input C | Output |
---|---|---|---|

0 | 0 | 0 | 0 |

0 | 0 | 1 | 1 |

0 | 1 | 0 | 1 |

0 | 1 | 1 | |

1 | 0 | 0 | 1 |

1 | 0 | 1 | |

1 | 1 | 0 | |

1 | 1 | 1 |

What is the value of in the table?

What is the value of in the table?

What is the value of in the table?

What is the value of in the table?

**Q2: **

The diagram shows an XOR gate. If input A is 1 and the output is 1, what must input B be?

**Q3: **

The diagram shows an XOR gate. If input is 0 and input is 0, what will the output be?

**Q4: **

XOR Gates | ||
---|---|---|

Input A | Input B | Output |

0 | 0 | |

0 | 1 | 1 |

1 | 0 | 1 |

1 | 1 |

The truth table shows the output of an XOR gate for various combinations of inputs.

What is the value of in the table?

What is the value of in the table?

**Q5: **

Which of the following symbols represents an XOR gate?

- A
- B
- C
- D