Question

In the circuit, the transistor has a large β value (VBE=0.7V). Find the current through RC.

(a) 0.5mA

(b) 2mA

(c) 1mA

(d) 1.6mA

I got this question during a job interview.

I need to ask this question from Self-Bias in division Transistor Biasing and Thermal Stabilization of Electronic Devices & Circuits

Answer 1

Right choice is (c) 1mA

To explain I would say: We know, IC=VTH-VBE/RE

=9*3/9=3V. IC=3-0.7/2.3=1mA.