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  • Tell me? If 4 point charges each +c is placed on the circumference of a circle of the diameter 2S if such a way that position of these 4 charges form a square on the circumference of the circle. Then, what is the potential at the center of the circle

If 4 point charges each +c is placed on the circumference of a circle of the diameter 2S if such a way that position of these 4 charges form a square on the circumference of the circle. Then, what is the potential at the center of the circle?

  • Option 1)

    4c / S

  • Option 2)

    0

  • Option 3)

    3c/S

  • Option 4)

    S / 4c

 

Answers (1)

best_answer

As we learnt in 

Potential of a System of Charge -

V=\frac{kq_{1}}{r_{1}}+k\frac{q_{2}}{r_{2}}+\frac{k\left ( -q_{3} \right )}{r_{3}}+\cdots

- wherein

 

Potential at centre, V= 4.\left ( \frac{KC}{S} \right )


Option 1)

4c / S

Correct

Option 2)

0

Incorrect

Option 3)

3c/S

Incorrect

Option 4)

S / 4c

Incorrect

Posted by

Aadil

View full answer

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