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    Trying to make a simple coil ..help required..
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    (Original post by dumbgirl340)
    Trying to make a simple coil ..help required..
    any particular specification?

    could you wrap some enameled copper wire around a pencil then pull the pencil out?
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    ........or wrap the wire around an empty toilet roll tube or candle stick and pull them out.

    As Joinedup said, depends on what you want the coil to do.
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    (Original post by Joinedup)
    any particular specification?

    could you wrap some enameled copper wire around a pencil then pull the pencil out?
    Thanks!
    Actually i want to perform an experiment on "simple D.C motor".The coil required for this should be of "copper wire".perhaps!!
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    (Original post by dumbgirl340)
    Thanks!
    Actually i want to perform an experiment on "simple D.C motor".The coil required for this should be of "copper wire".perhaps!!
    Copper will be the conductor. The enamelled part that Joined up referred to is a very thin layer of insulation around the conductor (as opposed to a plastic coating) allowing the conductors to be packed very close together in order to increase the magnetic field generated by the coil.

    Plastic coated wire is heavier, larger diameter and costs more!



    https://www.etsy.com/uk/listing/5112...lue?ref=market

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    (Original post by uberteknik)
    Copper will be the conductor. The enamelled part that Joined up referred to is a very thin layer of insulation around the conductor (as opposed to a plastic coating) allowing the conductors to be packed very close together in order to increase the magnetic field generated by the coil.

    Plastic coated wire is heavier, larger diameter and costs more!



    https://www.etsy.com/uk/listing/5112...lue?ref=market

    What should i use then?please send me all the details so that i could do it more precisely!thanks
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    (Original post by dumbgirl340)
    What should i use then?please send me all the details so that i could do it more precisely!thanks
    uber's given you a picture of 22 swg blue enameled copper wire, the colour isn't really important but can help you see where you've scraped off the insulating coating (which is quite a useful feature)

    swg is an old fashioned way of specifying the diameter of wire, 22swg has a diameter of about 0.7mm which is about right for this job (bigger swg means smaller diameter btw) you probably want to be in the 20 to 22swg area which is 0.9mm to 0.7mm diameter - much thinner wire than that has higher resistance and is more fiddly to work with.

    you can get enameled copper wire online or from walk-in electronics hobby shops (e.g. maplin)
 
 
 
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