Question

10. Four charges + 28 uc, -14 uC, + 12 uC and -26 u are placed at the four corners of a
square of side 2 m. Calculate the electric potential at the centre of the square.​

Answer 1

Answer:

0

Explanation:

V = kQ/r ; k = 9×10^9

r = diagonal/2

diagonal = √2 * side

hence r = √2 * 2/2 = √2cm

V = k/r ( Q1 + Q2 + Q3 + Q4)

V = k/√2 ( 28 -14 + 12 -26)

V = k/√2 (0) = 0

Therefore V = 0