Solving RLC Circuit with 2 500pF Capacitors and 80mH Inductor

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Discussion Overview

The discussion revolves around solving a problem related to a series RLC circuit that includes two 500pF capacitors, one 80mH inductor, and a 2.0K ohm resistor, with a frequency of 55 kHz. Participants engage in calculating the total impedance of the circuit.

Discussion Character

  • Technical explanation, Homework-related

Main Points Raised

  • One participant presents their calculations for the total impedance, noting discrepancies between their result and the expected answer.
  • Another participant requests clarification on the circuit configuration to determine the relationships between components and whether they are in series or parallel.
  • A later reply indicates that the original poster resolved their issue by identifying a calculation error.
  • One participant advises the original poster to provide detailed information in future posts to facilitate better assistance.

Areas of Agreement / Disagreement

The discussion appears to have been resolved by the original poster, who identified their own error. However, there was initial uncertainty regarding the circuit configuration and its impact on the calculations.

Contextual Notes

Limitations include the lack of initial circuit configuration details, which could affect the interpretation of component relationships and calculations.

DethRose
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Hey

ive got a problem with a series rlc circuit

it has 2 500pF capacitors and 1 80mh Inductor and one 2.0K ohm resistor circuit has a freqency of 55 KHZ

trying to calculate total impedance I am getting the wrong answer

im getting:

Xc= 1.93 kohms
Xl = 27.6 kohms

xl-xc = 25.7 kohms

so my final answer is Zt=(2.0+25.7j)

but the real answer is (2.0+16.07j)

please help haha
 
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You need to tell us the circuit configuration, other wise how can we know what is in parallel and what is in series? Or even if the circuit can be reduced.
circuit has a frequency of 55 KHZ
That is the input frequency or the natural frequency.

Please elaborate on your question/problem.
 
nevermind figured it out...made a calculation error haha :biggrin:
 
Ok good luck, just take what I said for future posts then please it will make answer them easier.
 

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