NEED HELP WITH CIRCUIT

HM1.pdf

EE188 Electrical Engineering

Section 3 - Fall 2017

HW #3

Resources in your BBLearn class shell that will be helpful in doing this homework:

Chapter 3, Nilsson/Riedel

Prelecture PowerPoints: On equivalent resistance, Kirchoff’s laws, Ohm’s law and the

Passive Sign Convention

Audio Review Notes: 01 Passive Sign Convention, 04 Annotating Schematics, 07-08 Req

Problems

WeBWorK (50 points total): Due: 11:45AM Thursday, September 21st

These are online problems that you must do individually online at the following

website:

https://webwork.math.nau.edu/webwork2/JHeynssens_188/

It is important to follow the directions very carefully, since the computer is looking

for precisely what is being specified.

1. WeBWorK 1 - 10 pts

2. WeBWorK 2 – 20 pts

3. WeBWork 3 – 20 pts

Written Problems (50 points): Due: 12:45PM – Thursday, September 21st

Write your name, the assignment name (HW #3), and the due date at the top of the

first page of each assignment. Rewrite each non-WebWork problem, show and label

your steps and your calculations (for possible partial credit), and rewrite each

question asked with the answer for each part in a box. Number all problems and

put them in order in your assignment. Staple multiple pages together. You will not

get credit if your work is difficult to follow or the answer with units in a box is not

easily seen or if these directions aren’t followed.

4. (10 pts each) By combining the resistances, determine the current produced by the

voltage source. Then find the current through each resistor and finally the voltage Vx in

part (a), V1 in part (b) and ig in part (c).

5. (20 pts) Calculate Vx and the equivalent resistance in the circuit schematic below if i0 =

3A. Does the equivalent resistance go up or down if the 8 Ohm resistor is increased in

value? Does Vx go up or down if i0 is still 3A and 8 Ohm resistor is increased in value?

2 Ω 4 Ω 8 Ω 16 Ω

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