Four point charges, each with Q = 4.5 uC are arranged at the corners of a...

Question

Question

Four point charges, each with Q = 4.5 uC are arranged at the corners of a square of edge length 1.5 m. What is the electric potential at the center of the square?

Answer 1

Answer #1

V=kQ/r

So

V=4kQ/(L/sqrt(2))=4sqrt(2)kQ/L=152735.065Volts

Answer 2

Answer #2

Potential of all charges are added as scalar quantities
therefore potential from one charge V = $\sqrt{2 }$ kQ/L

so from 4 charges = 4 $\sqrt{2 }$ kQ/L= 4*1.414* 9*10^9*4.5*10^-6/1.5 =152. 712 *10^3 V=1.527*10^5V

Answer 3

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