Question:
When we were asked to solve for the electric field intensity
we used the formula E = V/d. Then we had the question, what happens
to the electric field intensity if we double the charge. The answer was
the electric field intensity doubles since E and Q are proportional. THEN
the question asked what if we double the plate distance? The answer given
is there would be no change in the electric field intensity. WHY/? DOES
THE PLATE DISTANCE HAVE NO EFFECT ON THE ELECTRIC FIELD INSTENSITY//??

Replies:
In the first place, you must notice that your statements
are only true for a parallel plate condenser. So the question is, how
does one calculate the electric field between two charged parallel plates?
The next question is, when I know the electric field somewhere, how do
I calculate the voltage difference between two points in the electric field.
These are all related matters, so I hope that you will start looking for
the connections.

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