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Calculating resistance of winding in coil conductor?

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Discussion in 'Electronics Homework Help' started by Wena DJ, May 22, 2017.

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  1. May 22, 2017 #1
    Wena DJ

    Wena DJ

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    May 22, 2017
    Hi, I'm busy with Electrotechnics and I'm busy doing some worked examples and I've come across this question and i have no idea where to start:

    "A coil having 1500 turns of a conductor with a combined cross-sectional area of 300mm(squared) and a mean length per turn of 400mm, has an inductance of 3H"

    Calculate:
    "The resistance of the winding if the resistivity (specific resistance) of the conductor is 4micro-OHM.m"

    Some help would be hugely appreciated. I cannot find the correct formula to even start working on this question.
     
  2. May 22, 2017 #2
    (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    Jan 21, 2010
    Well, you can start by calculating the length of the wire used to wind the coil
     
  3. May 22, 2017 #3
    duke37

    duke37

    5,364
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    Jan 9, 2011
    The resistance is the resistivity * length / area
    You will need to get the area in meters squared and the length in meters.
     
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