Question About Electric Circuit

  • Thread starter askor
  • Start date
  • #1
askor
159
8

Homework Statement



Please give me a clue, I don't understand, how to find the magnitude of ##I_{ab}##?

725dd57.png

Homework Equations




The Attempt at a Solution

 

Answers and Replies

  • #2
cnh1995
Homework Helper
Gold Member
3,449
1,148
What have you tried so far? Are you familiar with KCL?
 
  • #3
CWatters
Science Advisor
Homework Helper
Gold Member
10,544
2,315
Have you worked out the voltage on a/b?
 
  • #4
askor
159
8
What have you tried so far? Are you familiar with KCL?

I am stuck. What is KCL? Is it Kirchoff's Current Law?

Have you worked out the voltage on a/b?

How?
 
  • #5
CWatters
Science Advisor
Homework Helper
Gold Member
10,544
2,315
I am stuck. What is KCL? Is it Kirchoff's Current Law?

Yes.

Have you worked out the voltage on a/b?

How?

"a" and "b" are at the same voltage because they are connected together. To work out that voltage you can simplify the circuit and use the potential divider method. There are other ways.

Once you have that voltage you can calculate the currents through all the resistors. Then apply KCL at either a or b.

or you can just wade in and apply KCL from the outset.
 

Suggested for: Question About Electric Circuit

  • Last Post
Replies
9
Views
3K
  • Last Post
Replies
14
Views
2K
  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
28
Views
3K
Replies
8
Views
1K
  • Last Post
Replies
5
Views
6K
  • Last Post
Replies
6
Views
1K
  • Last Post
Replies
3
Views
973
Replies
11
Views
3K
Top