Finding various currents around the circuit

  • Thread starter Thread starter captjackAV
  • Start date Start date
  • Tags Tags
    Circuit Currents
Click For Summary
SUMMARY

This discussion focuses on applying Kirchhoff's laws to analyze a circuit with a voltage source of 12V and resistors R1 (2kΩ), R2 (2.7kΩ), R3 (1kΩ), and R4 (5.1kΩ). The user successfully calculated I1 (0.006A), I2 (0.0044A), and I6 (0.0104A) using Ohm's Law (V=I/R) but seeks guidance on applying Kirchhoff's laws for further calculations. A suggestion was made to simplify the circuit by replacing two parallel resistors with a single equivalent resistor to facilitate easier analysis.

PREREQUISITES
  • Understanding of Kirchhoff's Current Law (KCL)
  • Familiarity with Ohm's Law (V=IR)
  • Basic knowledge of series and parallel resistor combinations
  • Ability to interpret circuit diagrams
NEXT STEPS
  • Learn how to apply Kirchhoff's Voltage Law (KVL) in circuit analysis
  • Study techniques for simplifying circuits with series and parallel resistors
  • Explore the use of circuit simulation tools like LTspice or Multisim
  • Investigate advanced circuit analysis methods such as nodal and mesh analysis
USEFUL FOR

Electrical engineering students, hobbyists working on circuit design, and anyone seeking to improve their skills in circuit analysis and problem-solving using Kirchhoff's laws.

captjackAV
Messages
3
Reaction score
0

Homework Statement


I have attached the circuit diagram to this thread.
V=12V, R1=2kΩ, R2=2.7kΩ, R3=1kΩ, R4=5.1kΩ.

Find I1, I2, I3, I4, I5, I6. Find VA, VB, VC, VD.
I just don't know how to apply kirchhoffs law to find the current and the voltage. I don't expect to have all answered. If someone can explain how to find at least 1 current and 1 voltage across a resistor, i can try to find the rest. Thank you in advance.

Homework Equations



I6=I1+I2
I1=I5+I3
I4=I2+I5
V=I/R

The Attempt at a Solution



I1= v/R1=12/2Ω=0.006A
I2= v/R2=12/2.7Ω=0.0044A
I6=I1+I2 = 0.0104A
VA=12V
 

Attachments

  • CIRCUIT.png
    CIRCUIT.png
    2.6 KB · Views: 509
Physics news on Phys.org
captjackAV said:
I just don't know how to apply kirchhoffs law to find the current and the voltage. I don't expect to have all answered. If someone can explain how to find at least 1 current and 1 voltage across a resistor, i can try to find the rest. Thank you in advance.
Hi captjackAV. http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif

Can you replace 2 of the parallel resistors with a single resistor? Simplify the circuit this way so you end up with something to which you can readily apply Ohm's Law.
 
Last edited by a moderator:

Similar threads

Network Analysis, Kirchhoff's Laws, changing current source to voltage
  • · Replies 4 ·
Replies
4
Views
1K
Solving Kirchoff's Laws: Are My Answers Correct?
  • · Replies 9 ·
Replies
9
Views
4K
How to determine the power of this circuit?
  • · Replies 2 ·
Replies
2
Views
2K
Using Kirchhoff's Laws to Solve this Circuit with Voltage and Current Sources
  • · Replies 10 ·
Replies
10
Views
2K
Using Kirchhoff's laws on this current division problem
  • · Replies 12 ·
Replies
12
Views
2K
Circuit analysis: Six resistors and two batteries
  • · Replies 1 ·
Replies
1
Views
2K
Solving Current & Power in 4 & 3 Wire Circuits
  • · Replies 9 ·
Replies
9
Views
2K
Multiple Power Source Circuit Analysis
  • · Replies 9 ·
Replies
9
Views
3K
Power dissipated in this circuit with 2 batteries and 3 resistors
  • · Replies 22 ·
Replies
22
Views
4K
Finding the currents in this circuit (2 voltage sources and 3 resistors)
  • · Replies 10 ·
Replies
10
Views
3K