Question

base bias is less stable than voltage-divider bias.
select one:
○ true
○ false

Explanation:

Base bias has a fixed base current \(I_B\). As temperature changes or transistor parameters vary (like \(β\)), \(I_C = βI_B\) can change significantly. Voltage - divider bias uses a voltage - divider network at the base. It provides negative feedback. For example, if \(I_C\) tries to increase (due to temperature rise or \(β\) increase), the emitter voltage \(V_E\) (since \(V_E=I_E R_E\approx I_C R_E\)) increases. The base - emitter voltage \(V_{BE}=V_B - V_E\) (where \(V_B\) is set by the voltage - divider) decreases, which in turn reduces \(I_B\) and \(I_C\). So voltage - divider bias is more stable.

Answer:

True