Four Identical Point Charges Q Are Placed at the Corners

question 69

Multiple Choice

Four identical point charges Q are placed at the corners of a rectangle which measures 3.00 m * 5.00 m.The potential at the geometric center of this rectangle is 32.2 V assuming that the electric potential is zero at infinity.The charge Q is

• A)1.35 nC.
• B)2.61 nC.
• C)3.24 nC.
• D)4.89 nC.
• E)5.72 nC.

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