Four +7 µC point charges are at the corners of a square of side 3 m. Find the potential at the center of the ?
square (relative to zero potential at infinity) for each of the following conditions.
(a) All the charges are positive
(b) Three of the charges are positive and one is negative
(c) Two are positive and two are negative
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State the medium and dielectric constant!
Dr. Bochinski huh? I discovered a by skill of looking out the size firsts. so which you be attentive to the diagonal of the sq. would be sqrt(a^2 + a^2). So you are able to now say that the size from the nook to the middle is sqrt(2a^2)/2. Then in simple terms plug into the formula which you have for V. V=keq/r and multiply by skill of four because of fact there are 4 fees. So... 4*(ke(Q/(sqrt(2a^2)/2)))