Hi Ghar,

I was asking about how can we get same voltage by different number of charges. You gave me an answer, but not clear.

Can you tell me what this equation mean:

E = K q/ r^2?? what K means, and what do you mean exactly?

Thanks alot

 

Try posting a link, that way everyone can know what you're talking about.

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That is Coulomb's Law, and K is a constant that depends on the material you're dealing with.

http://en.wikipedia.org/wiki/Coulomb's_law

Basically what I was saying is that voltage depends on electric field and electric field depends on charge. It's a series of interactions.

The relationship between charge and voltage is defined as capacitance.