Understanding Voltage in a Simple Circuit | Physics Forums

  • Thread starter Thread starter pinkcashmere
  • Start date Start date
  • Tags Tags
    Circuit
Click For Summary
SUMMARY

The discussion clarifies that the voltage ##V^-## is equivalent to the voltage across resistor R2 due to their direct connection in the circuit. This relationship is established through Kirchhoff's Voltage Law (KVL), which states that the sum of electrical potential differences around a closed circuit must equal zero. The participants confirm that since ##V^-## is connected to the top of R2, both share the same electrical potential relative to the reference node, or ground.

PREREQUISITES
  • Understanding of Kirchhoff's Voltage Law (KVL)
  • Basic knowledge of electrical circuits and components
  • Familiarity with voltage and potential difference concepts
  • Ability to interpret circuit diagrams
NEXT STEPS
  • Study Kirchhoff's Voltage Law in detail
  • Explore the concept of electrical potential and reference nodes
  • Learn about series and parallel circuits and their voltage relationships
  • Investigate common circuit analysis techniques using tools like Multisim or LTspice
USEFUL FOR

Students studying electrical engineering, physics enthusiasts, and anyone seeking to understand basic circuit analysis and voltage relationships in simple circuits.

pinkcashmere
Messages
17
Reaction score
0

Homework Statement


Can someone why the voltage ##V^-## is the same voltage as that of R2?

https://www.physicsforums.com/attachments/circuit-png.92144/

Homework Equations


-

The Attempt at a Solution


is it an application of KVL concerning the voltage for R1 and ##V^-##
 
Last edited by a moderator:
Physics news on Phys.org
According to your image V- is directly connected to the top of R2. So they must have the same potential with respect to the reference node (ground).
 

Similar threads

Replies
3
Views
2K
  • · Replies 10 ·
Replies
10
Views
2K
Replies
9
Views
1K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
Replies
3
Views
1K
Replies
4
Views
2K
  • · Replies 6 ·
Replies
6
Views
3K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K