![digital logic - Why does the output of NOT gate (in a 74LS04 IC) equal to one when the input wire is not connected to anywhere? - Electrical Engineering Stack Exchange digital logic - Why does the output of NOT gate (in a 74LS04 IC) equal to one when the input wire is not connected to anywhere? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/avCQn.jpg)
digital logic - Why does the output of NOT gate (in a 74LS04 IC) equal to one when the input wire is not connected to anywhere? - Electrical Engineering Stack Exchange
![1: Illustration of NOT logic, (a): Input and output signal (b): Truth... | Download Scientific Diagram 1: Illustration of NOT logic, (a): Input and output signal (b): Truth... | Download Scientific Diagram](https://www.researchgate.net/profile/Serges-Zambou/publication/311453582/figure/fig45/AS:436435376447491@1481065710387/Illustration-of-NOT-logic-a-Input-and-output-signal-b-Truth-table-of-a-NOT-gate.png)
1: Illustration of NOT logic, (a): Input and output signal (b): Truth... | Download Scientific Diagram
![Implementation of a NOT gate with two transistors - Why not one? - Electrical Engineering Stack Exchange Implementation of a NOT gate with two transistors - Why not one? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/wuYyn.png)