Measuring Frequency of an EMF with Gaussmeter: An Inquiry

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Discussion Overview

The discussion revolves around measuring the frequency of an electromagnetic field (EMF) generated by two series-connected coils excited with 15 V AC. Participants explore the relationship between the frequency of the AC source and the frequency of the generated EMF, seeking equations or methods to determine this frequency.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • Mit inquires about the frequency of the electromagnetic field generated by the coils and whether there is an equation to determine it.
  • One participant suggests that the frequency of the field can be equated to the frequency of the AC source.
  • Another participant states that the frequency at which the magnetic field changes direction corresponds to the frequency of the alternating voltage, providing an example with a 60 Hz AC source.

Areas of Agreement / Disagreement

Participants appear to agree that the frequency of the generated EMF is related to the frequency of the AC source, but the discussion does not reach a definitive conclusion on the method to measure or calculate it.

Contextual Notes

There are no explicit equations provided, and the discussion does not clarify any assumptions regarding the measurement setup or the characteristics of the coils.

Who May Find This Useful

Individuals interested in electromagnetic theory, AC circuits, and measurement techniques in physics may find this discussion relevant.

mit_cool
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Hello,
I got two series connected coils which I exited with 15 V AC. I got EMF between the space in the field and I measured it with gaussmeter saying 200 µT. I want to know the freqency of that generated electromagnetic field? Does anyone know how to do it? Is there any Equation for it?
Thanks,
Mit
 
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Hi MIT. ##\quad## How about ##\ f_{\rm field} = f_{\rm AC\ source}\ ## ?
 
The frequency which the B field changes its direction is the same frequency which the Voltage alternates. If you had a 60hz Vac, the B field would follow also this frequency.
 
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Oh ya.. very simple.

Thank you guys,
Mit
 

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