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Calculating resistance of winding in coil conductor?

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

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  1. Wena DJ

    Wena DJ

    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"

    "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. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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


    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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