# Worksheet: NOT Gates

In this worksheet, we will practice determining the input and output of NOT gates in logic circuits and completing truth tables for NOT gates.

**Q3: **

Which of the following symbols represents a NOT gate?

- A
- B
- C
- D

**Q5: **

Input | 0 | 1 |
---|---|---|

Output |

The diagram shows three NOT gates connected as part of a logic circuit. The truth table shows the two different possible inputs.

What is the value of in the table?

- A0
- B1

What is the value of in the table?

- A1
- B0

**Q6: **

Four NOT gates are connected together in series. If the input of the first NOT gate is 0, what will the output of the final NOT gate be?

- A0
- B1

**Q7: **

Three NOT gates are connected together in series. If the input of the first NOT gate is 0, what will the output of the final NOT gate be?

- A0
- B1

**Q8: **

Four NOT gates are connected in series. How many different combinations of input values are there for these gates?