How would you set up a circuit to obtain NOT gate using a transistor?

Answer

A

Explanation

A NOT gate can be formed by proper biasing of a transitor as shown.
`(##DCP_V05_C35_E01_022_S01.png" width="80%">`
If input (A) is low (0) , then the transistor is in cut off stage and output (Y) is same as ` V_(CC) = V (1) ` . If input (A) is high , then transistor current is in saturation and the net voltage at output (Y) is V (0) or is in state 0 .