Question

For the circuit shown, find the quiescent point.

(a) (10V, 4mA)

(b) (4V, 10mA)

(c) (10V, 3mA)

(d) (3mA, 10V)

I had been asked this question in final exam.

The doubt is from DC Load Lines topic in portion Transistor Characteristics of Electronic Devices & Circuits

Answer 1

The correct choice is (c) (10V, 3mA)

For explanation I would say: We know, IE=VEE/RE=30/10kΩ=3mA

IC=α IE =IE =3mA

VCB=VCC-ICRL=25-15=10V. So, quiescent point is (10V, 3mA).