Question about a circuit to be solved with Norton's theorem

  • Context: Engineering 
  • Thread starter Thread starter link223
  • Start date Start date
  • Tags Tags
    Circuit Theorem
Click For Summary
SUMMARY

The discussion centers on the application of Norton's theorem in circuit analysis, specifically addressing the behavior of resistors in parallel. When terminals a-b are short-circuited, the 5-ohm resistor can be ignored because it is effectively in parallel with a zero-ohm resistor, resulting in a total resistance of zero ohms. This principle is crucial for simplifying circuit calculations and understanding the impact of short circuits on resistor networks.

PREREQUISITES
  • Understanding of Norton's theorem
  • Basic knowledge of circuit analysis
  • Familiarity with resistor configurations, particularly parallel resistors
  • Ability to interpret circuit diagrams
NEXT STEPS
  • Study Norton's theorem applications in various circuit configurations
  • Learn about the implications of short circuits in electrical circuits
  • Explore the concept of equivalent resistance in parallel circuits
  • Review circuit analysis techniques, including Thevenin's theorem
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in circuit analysis or troubleshooting electrical systems.

link223
Messages
70
Reaction score
12
Homework Statement
See picture please, it is highlighted in yellow.
Relevant Equations
Norton's theorem
Hello guys, I am new here.
I was wondering whether I could get some help about the highlighted part. What I don't understand is why we are able to ignore the 5-ohms resistor when we have short circuited terminals a-b.

Thanks in advance.
1650705027062.png
 
Physics news on Phys.org
Welcome to PF.
link223 said:
What I don't understand is why we are able to ignore the 5-ohms resistor when we have short circuited terminals a-b.
Because a zero ohm resistor in parallel with a 5 ohm, (or any other resistor) is going to be zero ohms.
 
Reply
  • Like
Likes   Reactions: link223
Baluncore said:
Welcome to PF.

Because a zero ohm resistor in parallel with a 5 ohm, (or any other resistor) is going to be zero ohms.
Thanks! and thanks once again! I didn't think this through then.. makes total sense (also just noticed I was looking at fig(c) not (b) :'D) Thanks though!
 

Similar threads

Engineering Norton's Theorem -- Help checking my work please
  • · Replies 18 ·
Replies
18
Views
3K
Engineering Is my method of solving this correct? Superposition theorem
  • · Replies 15 ·
Replies
15
Views
2K
How to Calculate the Complex Op Amp in Circuit Diagram
  • · Replies 8 ·
Replies
8
Views
2K
Engineering How do I find Vth with the node voltage method?
  • · Replies 10 ·
Replies
10
Views
4K
Engineering Why is the voltage source high potential into node 1 at -12 V in this op amp problem?
  • · Replies 15 ·
Replies
15
Views
2K
Engineering Norton/Thevenin Equivalent circuits with a dependent voltage source
  • · Replies 9 ·
Replies
9
Views
6K
Engineering Diff gain of a push pull degenerated differential pair
  • · Replies 6 ·
Replies
6
Views
2K
Engineering Calculating Norton Equivalent Circuit for Complex Load Impedance
  • · Replies 2 ·
Replies
2
Views
2K
Using Norton's Theorem to Solve for Io in a Complex Circuit
  • · Replies 10 ·
Replies
10
Views
4K
Norton's Theorem: Solving Current Across Terminals a-b
  • · Replies 4 ·
Replies
4
Views
3K