Calculating Apparent Power, Average Power, and Power Factor in AC Circuits

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Discussion Overview

The discussion revolves around calculating apparent power, average power, and power factor in AC circuits, specifically focusing on a circuit involving inductance (L) and capacitance (C). Participants are attempting to solve a problem related to these calculations and are seeking assistance due to previous incorrect results.

Discussion Character

  • Homework-related, Technical explanation

Main Points Raised

  • One participant expresses difficulty in finding the correct values for apparent power (S), average power (P), and power factor (PF) in a given AC circuit.
  • Another participant requests clarification on what the original poster has attempted and the definitions of the quantities involved.
  • A different participant suggests that the first step is to find the impedances of the circuit components before calculating S and P, providing formulas for these calculations.
  • One participant provides specific numerical values for apparent power, power factor, and average power, but does not clarify how these values were derived.
  • Several participants emphasize the need for the original poster to share their attempts to identify any errors in their calculations.

Areas of Agreement / Disagreement

There is no consensus on the correct approach or solution to the problem, as participants are offering different perspectives and formulas without resolving the discrepancies in the calculations.

Contextual Notes

Participants have not provided complete details on their calculations or the assumptions made in their approaches, leading to potential gaps in understanding the problem.

Who May Find This Useful

Students or individuals working on AC circuit analysis, particularly those struggling with power calculations in electrical engineering contexts.

mohamen
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ac impedance ...find power

this is the circuit...attached...i have to find appartent power ( S) , Average Power (P) and power factor (p)...i have tried this question a lot times but every time i get incorrect result ...please solve this question...

Thanks
 

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please reply...
 
Please show us what you have tried.

What are the definitions of the quantities you need to find?
 
u just have 2 find the apparent power and average power ...u have been given a circuit having L & C...first u have to find its impedances then find the S and P...the formula for S is S=1/2 Vm Im...and for P=1/2 Vm I am Cos (phi)...thats it...i have tried by this but i didnt get the correct answer...
 
You need to show us what you have tried, that way we can help you find your errors.
 
Your naswers should be 676VA at an angle of 58.16 degrees. PF=52%, Power = 357 watts. Now, what have you done so far?

Hope this helps.
 

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