[Phys-l] defn of capacitance

[carmelo@pacific.net.sg]

Carl E Mungan wrote:
> My initial stab at a definition was the following: Capacitance is  
> uniquely defined if I specify the geometry of the two conductors  
> (shapes, sizes, separations, etc) as delta(V)/Q where delta(V) is  
> the absolute value of the line integral of E between the two  
> conductors and Q is the absolute value of the average difference in  
> charges of the two plates (ie. half of the difference in charges on  
> the two plates).

Actually, I guess your question is related to the "Physics Challenge".  
Don't you think the question this time is a bit "faulty"? Need to make  
*some assumptions* on the capacitance in order to solve it. :-)


Alphonsus