Question

What is the equation of the load line in the linear analysis of a transistor?

(a) VCE = VCC + IB RL

(b) VCE = VCC – IB RL

(c) VCE = VCC + IC RL

(d) VCE = VCC – IC RL

The question was asked in an interview for job.

Enquiry is from Transistor Amplifier Response, Taking Source Resistance into Account topic in portion High Frequency Transistor of Electronic Devices & Circuits

Answer 1

Correct answer is (d) VCE = VCC – IC RL

The best explanation: Let the collector voltage supply be VCC in series with a load resistor RL. A straight line superimposed on the collector characteristic will provide us with the load line. The equation for the load line is VCE = VCC – IC RL.