Test Corrections

Discussion in 'Homework Help' started by super70elco, May 8, 2007.

  1. super70elco

    Thread Starter New Member

    Oct 30, 2006
    8
    0
    Hey everyone,
    I am correcting my electronics test and I had a couple of questions that i cannot find, and I am need of some help.
    What is one word to describe "potential difference"?
    What is one word to describe "electomotive force"?
    What is another name for a condenser?
    What are you calculating with this formula and how do I find K? C=(KA)/t?
    What are you calculating with this formula and what is C and what is Q? Q=CE?

    Any help would be great. Thanks guys
     
  2. recca02

    Senior Member

    Apr 2, 2007
    1,211
    0
    i m not getting your question do you want answers to above questions?
     
  3. Salgat

    Active Member

    Dec 23, 2006
    215
    1
    I believe he does.
     
  4. super70elco

    Thread Starter New Member

    Oct 30, 2006
    8
    0
    Yes please....I cannot find the anwers to any of them....Not even the fromulas....

    Any help would be great. Thanks
     
  5. recca02

    Senior Member

    Apr 2, 2007
    1,211
    0
    voltage can used as a term for potential difference.
    similarly voltage can be used for electromotive force (emf)
    condenser(electrical) is the old and obsolete terminology for capacitors.
    C=K.A/t :- formula to calculate capacitance of capacitor
    where
    c= capacitance.
    k= dielectric constant for the material in the gap (general notation)or relative permittivity with respect to vacuum
    t= gap between the plates or parallel cyllinders of capacitor.
    actually the formula is c=eA/t
    here e is the actual permittivity and is equal to e(0).K
    where e(0) is permittivity of vacuum.
    so k=e/e(0)
    Q=CE
    here Q is the charge stored in the capacitor plates.
    c is again the capacitance
    E is the voltage developed across the capacitor.

    were these the answers you were looking for.

    for more info try googling some keywords from above
    or post if u have any doubts.
     
  6. super70elco

    Thread Starter New Member

    Oct 30, 2006
    8
    0
    YES!!!! That is what I am looking for! Thank you! I tried googling them but didnt have that much luck.
     
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