How Do I Calculate Wavelength in an AC Circuit?

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Homework Help Overview

The discussion revolves around calculating the wavelength in an AC (Alternating Current) circuit, where the current varies sinusoidally. The original poster seeks assistance in understanding how to determine the wavelength, maximum and minimum current values, and the timing of these peaks based on a provided graph.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to calculate the wavelength and peak values from a graph but expresses uncertainty about their answers. They question the methods for estimating these values and seek clarification on the relationship between current and time in an AC circuit.

Discussion Status

Some participants provide insights into the nature of alternating current and suggest that measuring frequency typically requires specialized equipment. There is a recognition that the original poster may need to clarify their understanding of the problem, as the requirements of the homework are not fully articulated.

Contextual Notes

The original poster notes their status as an independent student without access to a teacher, which may impact their ability to navigate the problem effectively. There is also mention of forum rules requiring an attempt at a solution before receiving help.

Durley
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I've just begun learning physics for the first time. Please can anyone help me understand how to work through this problem?

In an AC (Alternating Current) circuit, the current, I, measured in Amps (A) varies sinusoidally

http://i1088.photobucket.com/albums/i332...How can I calculate the wavelength of this current? Also, at what times will the current next reach its maximum and minimum values? And how can I estimate the maximum and minimum current from this graph?I wonder if the wavelength is 1/10?

Is the time it next reaches its maximum peak 11 minutes? And 16 minutes for its minimum peak?

Furthermore, is the minimum current -8A and the maximum current 8A?

I'm not if these answers are correct as don't know how to work this question out. I unfortunately don't have a teacher I can ask as I'm an independent student.

Please can anyone help me?

Thank you very much!
 
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In an alternating current that current is as you say varying, reaching some maximum flow amount, then reversing and reaching the maximum amount in the opposite direction.
You can't determine what the frequency is just by measuring the current, you would need a device intended for the purpose, typically an oscilloscope
 
You'll not need to calculate to deduce the required info from the graph(waveform)
 
Durley said:
I've just begun learning physics for the first time. Please can anyone help me understand how to work through this problem?

In an AC (Alternating Current) circuit, the current, I, measured in Amps (A) varies sinusoidally

http://i1088.photobucket.com/albums/i332...How can I calculate the wavelength of this current? Also, at what times will the current next reach its maximum and minimum values? And how can I estimate the maximum and minimum current from this graph?I wonder if the wavelength is 1/10?

Is the time it next reaches its maximum peak 11 minutes? And 16 minutes for its minimum peak?

Furthermore, is the minimum current -8A and the maximum current 8A?

I'm not if these answers are correct as don't know how to work this question out. I unfortunately don't have a teacher I can ask as I'm an independent student.

Please can anyone help me?

Thank you very much!

Welcome to PF!

The PF Rules require that all users requesting help with a HW problem fill out the HW template.

PF Rules also require that a user attempt a solution before receiving any help with HW.

It's not clear what your HW problem is asking you.
 

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