Biasing in electronics refers to setting a specific operating condition for a device like a transistor or vacuum tube — and **it is a DC (Direct Current) process**.
### Here's why:
* **Biasing uses DC voltages or currents** to establish a desired operating point, such as the quiescent point (Q-point) in a transistor.
* This DC condition allows the device to **respond properly to superimposed AC signals** without distortion.
* For example, in an amplifier, the **bias sets the base or gate voltage** to ensure the transistor stays in the correct region (like active, cutoff, or saturation).
### Summary:
* **Biasing = DC**
* **Signal = AC**
Would you like a simple diagram of how biasing and signal combine in a transistor amplifier?