making a capacitor

Discussion in 'Homework Help' started by Zanac-X, Oct 2, 2012.

  1. Zanac-X

    Thread Starter Member

    Dec 23, 2011
    hi guys :)

    i have no idea on how to solve this because of the air being an Insulator so please help me solve this :

    calculate the area of the plate used for making a capacitor 1f if the length between the plates equals 10mm and the insulator is air ?

    i have on idea on how to solve this so anything will help me a lot

    thanks in advance
  2. cork_ie


    Oct 8, 2011
    Hi Zanec,
    No offence intended but I think you need to read up on what a capacitor is and how it works.
    All capacitors have an insulator of some sort called the dielectric, sandwiched between two "plates".
    Capacitance is proportional to the surface area of overlap of the two "plates" and inversely proportional to the distance between them.It is also proportional to the "dielectric strength" of the material between them.

    Due to the great efforts of some AAC members (not including me) there is a great resource on this site, called the e-book,and the links are on the top of each page.
    The section on capacitors is here

    Like yourself, my knowledge of electronics is limited and I have found it a great help
    Last edited: Oct 2, 2012
  3. JDT

    Well-Known Member

    Feb 12, 2009