Impedance/AC Circuits: Computing RMS Current

  • Context: Undergrad 
  • Thread starter Thread starter GlennBridgman
  • Start date Start date
  • Tags Tags
    Circuits
Click For Summary
SUMMARY

The discussion focuses on calculating the RMS current in an AC circuit consisting of an inductor with inductance L in parallel with a resistor R_L, which is then in series with another resistor R. The user initially sought guidance on determining the RMS current through each circuit element but later resolved the issue by addressing their handling of complex numbers. This highlights the importance of correctly applying complex number techniques in AC circuit analysis.

PREREQUISITES
  • Understanding of AC circuit theory
  • Familiarity with complex numbers and their applications in electrical engineering
  • Knowledge of inductance and resistance in circuits
  • Basic principles of RMS (Root Mean Square) calculations
NEXT STEPS
  • Study the application of complex impedance in AC circuits
  • Learn how to calculate RMS values for different circuit configurations
  • Explore the use of phasors in analyzing AC circuits
  • Review techniques for solving circuit problems involving parallel and series components
USEFUL FOR

Electrical engineering students, circuit designers, and anyone involved in analyzing AC circuits will benefit from this discussion.

GlennBridgman
Messages
2
Reaction score
0
This post is designed to elicit a general explanation, but here is an example of the type of problem that is giving me issues.

You have a circuit, which is driven by a sinusoidal power source with frequency w. The circuit consists of a inductor with inductance L in parallel with a resistor with resistance R_L. Both of these are in turn in series with another resister with resistance R. How do I determine the RMS current through each of the circuit elements? Thanks in advance.
 
Physics news on Phys.org
GlennBridgman said:
This post is designed to elicit a general explanation, but here is an example of the type of problem that is giving me issues.

You have a circuit, which is driven by a sinusoidal power source with frequency w. The circuit consists of a inductor with inductance L in parallel with a resistor with resistance R_L. Both of these are in turn in series with another resister with resistance R. How do I determine the RMS current through each of the circuit elements? Thanks in advance.
Never mind, figured it out. Was just being lazy about my complex numbers.
 

Similar threads

Undergrad Why does resistance reduce current in whole circuit?
  • · Replies 38 ·
2
Replies
38
Views
7K
Undergrad How do I calculate the expected Gain?
  • · Replies 1 ·
Replies
1
Views
1K
High School How can scalars like voltage, impedance, etc. be added like vectors?
  • · Replies 17 ·
Replies
17
Views
3K
Undergrad Is the Poynting Vector Field the Only Factor in Energy Flow in Circuits?
  • · Replies 16 ·
Replies
16
Views
4K
Undergrad LRC Series Circuit with an AC Source
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad An attempt to understand the associated variable conventions in circuits
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Facing issues in understanding a Purely Inductive Circuit
  • · Replies 13 ·
Replies
13
Views
3K
High School Antenna induction, oscillating circuit generating EM Waves
  • · Replies 6 ·
Replies
6
Views
2K
High School How to remember what happens to I, V and R in a circuit?
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad Resulting magnetic field due to the passage of an AC current
  • · Replies 27 ·
Replies
27
Views
3K