Question

For the circuit shown, find the quiescent point.

(a) (10V, 4mA)

(b) (4V, 10mA)

(c) (10V, 3mA)

(d) (3mA, 10V)

This question was addressed to me during an internship interview.

Enquiry is from Problems on AC and DC Analysis in chapter Small-Signal Low-Frequency AC models of Transistors of Electronic Devices & Circuits

Answer 1

Right answer is (c) (10V, 3mA)

The best explanation: We know, IE=VEE/RE=10/5kΩ=2mA

IC=α IE =IE =2mA

VCB=VCC-ICRL=20-10=10V. So, quiescent point is (10V, 2mA).