Load Voltage Problem - Find the Fault!

  • Thread starter Thread starter alexmath
  • Start date Start date
  • Tags Tags
    Load Voltage
Click For Summary
SUMMARY

The discussion centers on identifying the fault in a circuit problem related to load voltage, where the correct answer is determined to be -3 volts. The key issue highlighted is the oversight of the current I1, which also flows through the resistor, affecting the final voltage calculation. Participants emphasize the importance of using consistent units in electrical calculations to avoid errors.

PREREQUISITES
  • Understanding of electrical circuits and load voltage concepts
  • Familiarity with Ohm's Law and current flow
  • Knowledge of resistor behavior in series and parallel circuits
  • Ability to perform voltage calculations with multiple current sources
NEXT STEPS
  • Review circuit analysis techniques for multiple current sources
  • Study the impact of resistor configurations on voltage calculations
  • Learn about consistent unit usage in electrical engineering
  • Explore advanced topics in load voltage and fault analysis
USEFUL FOR

Electrical engineering students, circuit designers, and anyone troubleshooting load voltage issues in electrical systems.

alexmath
Messages
35
Reaction score
0

Homework Statement



Problem is in the pic. uploaded.


Homework Equations





The Attempt at a Solution



Also in the pic. The right answer is -3, where is the fault? Thank you!
 

Attachments

  • problem.PNG
    problem.PNG
    10.7 KB · Views: 454
  • WP_20140524_16_19_18_Pro.jpg
    WP_20140524_16_19_18_Pro.jpg
    15.3 KB · Views: 460
Physics news on Phys.org
It is hard to read your approach.
You just consider I2 to calculate the final voltage, but there is also I1 flowing through the resistor. And you should use units in a consistent way.
 
You are right. My mistake!
 
Last edited:

Similar threads

Simple problem with voltages
  • · Replies 7 ·
Replies
7
Views
1K
Find the Period of Oscillation for a Mass Falling Through a Tunnel Through the Earth
  • · Replies 7 ·
Replies
7
Views
1K
Same pressure points , 2 fluids u shaped tube
  • · Replies 3 ·
Replies
3
Views
2K
How do I measure the "load" in a schematic?
  • · Replies 5 ·
Replies
5
Views
2K
What's the current from this circuit? Is it a short circuit or not?
  • · Replies 11 ·
Replies
11
Views
2K
Statics of structure, distributed load
  • · Replies 3 ·
Replies
3
Views
2K
Load resistance in voltage regulator
  • · Replies 3 ·
Replies
3
Views
2K
Question about complex power in three phase circuits
  • · Replies 2 ·
Replies
2
Views
3K
Finding the value of this load resistor
  • · Replies 2 ·
Replies
2
Views
1K
Physics: Projectile Motion - Maximizing Soccer Ball Distance/Hang-Time
  • · Replies 34 ·
2
Replies
34
Views
3K