# Need serious help - exam tommorow

#### warg85zak

Joined Aug 28, 2013
4

Can anyone solve this for me? I missed the lectures going over it, i know the basic principles but both these questions stumpped me.

Joined Jul 18, 2013
20,405
What did you come up with so far?
Show all working!
Max.

#### warg85zak

Joined Aug 28, 2013
4
Unfortunately i don't have a scanner but after taking the reading at 3v i got 1.4v across the nodes A and B?

#### warg85zak

Joined Aug 28, 2013
4
P.s my exams tommorow

#### warg85zak

Joined Aug 28, 2013
4
It is pretty much guaranteed to come up in the exam, just with different values... hopefully easier than this example.

#### jegues

Joined Sep 13, 2010
733
It is pretty much guaranteed to come up in the exam, just with different values... hopefully easier than this example.
I guess you better learn it then.

Unfortunately i don't have a scanner but after taking the reading at 3v i got 1.4v across the nodes A and B?
Good thing by using LaTeX you can type all your work.

#### JoeJester

Joined Apr 26, 2005
4,259
Unfortunately i don't have a scanner but after taking the reading at 3v i got 1.4v across the nodes A and B?
Cellular Telephones in this day and age come with camera's.

#### Austin Clark

Joined Dec 28, 2011
412
http://en.wikipedia.org/wiki/Superposition_theorem

I don't have a formal education in electronics, and so I've never had to solve something like this (Heck, I've never even heard of that theorem until now).
But I'll share my answers (which I don't know are correct) if you share yours.
It's justified because neither of us are 100% sure.

#### WBahn

Joined Mar 31, 2012
25,546
Unfortunately i don't have a scanner but after taking the reading at 3v i got 1.4v across the nodes A and B?
What do you mean "taking the reading at 3V"?

Both problems can be solved by inspection in your head performing onlly the following arithmetic compuations (some more than once) between the two problems:

3+9, 5+5, 25+1, 5*5, 5*6, 3/1, 10/2, 15/3.