Purchase Solution

Working with Thevenin's theorem

Not what you're looking for?

Ask Custom Question

Please check my work and if incorrect give me the correct answer

Please refer to the problem stated in the attached file.

(For the circuit shown below, beta = 80. What is the value of Ic?)

My solution is:
Beta=80
Vbe=.7
Solve for Ic
Step one:
Vbb=+15*Rb2/(Rb1+Rb2)=15*50/(100+50)=+5
step two
Rbb=Rb1//Rb2=(100*50)/(100+50)=33.33
Ie=(Vbb-Vbe)/Re+[Rbb/(Beta+1)
=(5-.7)/3+(33.3/81)=4.3/3.41=1.26mA
Ib=Ie/(Beta=1)=1.26/81=.01557mA
Vb=Vbe+IeRe=.7+(1.26*3)
alpha=80/81=.9877
Ic=alphaIe=.9877*1.26=1.244

Answer is A

Attachments
Purchase this Solution

Solution Summary

Very detailed solution with all steps.

Solution Preview

The base is connected to a voltage divider circuit, the current through those resistors is
I1 = 15/(100+50)*10^3 = 0.0001 A

Voltage across, R_B2,
Vbb = 0.0001 * ...

Purchase this Solution


Free BrainMass Quizzes
Basic Physics

This quiz will test your knowledge about basic Physics.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.