Question

What is the function of a bias circuit?

(a) To simplify the circuit

(b) To provide a non – linear output

(c) To optimize the power

(d) To provide steady current or voltage

I had been asked this question by my college director while I was bunking the class.

My question is from Stabilization against Variations in VBE and Beta for Self Bias Circuit topic in division Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits

Answer 1

The correct answer is (d) To provide steady current or voltage

The best I can explain: The Q – point of a device is the direct current or voltage of a device when no input is applied. The bias circuit is a part of the device with provides the steady current or voltage. It is designed by determining the necessary voltage and current levels across each resistor.