Calculating length of wire in existing electromagnet

[hubihubi2]

Hello,

I would like to ask for little help in calculating the length of wire in the existing electromagnet (bought from the shop).
I know that bought electromagnet is for DC, 24[V], 1.3[A], 33[W]. Diameter of the wire is 0.52mm. I kindly ask for help.


Thank you.

Regards

 

[desrod]

How much precision do you need? What instrument(s) do you have?

Measure the Rdc of the electromagnet and find the Rdc per meter of conductor (measure or get it from reference tables). The ratio gives you the total lenght. This should give you a good estimate.

 

[electricpete]

There are probably many ways to approach it, but measuring resistance sounds like good idea to me assuming conductor diameter (excluding enamel) can be determined. Measure temperature and correct the resistance reading for that.

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