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Physics

Potential Due to a Point Charge

Question

Four charges +q,+q ,-q and q are placed , respectively , at the corner A, B, CV and D of square of side a, arranged in the given order. E and F are the midpoints of the sides BC and CD , respectively . O is the center of square
The electric potential at O is

$$ \frac { \sqrt {2} q}{ \pi \epsilon_0 a } $$

$$ \frac { \sqrt {3} q}{ \pi \epsilon_0 a} $$

$$ Zero $$

$$ \frac {q}{ \pi \epsilon_0 a} $$

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Solution

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Correct option is D. $$ Zero $$

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Four charges +q,+q ,-q and q are placed , respectively , at the corner A, B, CV and D of square of side a, arranged in the given order. E and F are the midpoints of the sides BC and CD , respectively . O is the center of square
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Four charges +q,+q ,-q and q are placed , respectively , at the corner A, B, CV and D of square of side a, arranged in the given order. E and F are the midpoints of the sides BC and CD , respectively . O is the center of square The electric potential at O is

Correct option is D. $$ Zero $$

Four charges +q,+q ,-q and q are placed , respectively , at the corner A, B, CV and D of square of side a, arranged in the given order. E and F are the midpoints of the sides BC and CD , respectively . O is the center of square
The electric potential at O is