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Identical Point Charges (+50 ±\pm C)are Placed at the Corners of a Square with Sides

Question 44

Multiple Choice

Identical point charges (+50 ±\pm C) are placed at the corners of a square with sides of 2.0-m length.How much external energy is required to bring a fifth identical charge from infinity to the geometric center of the square?


A) 41 J
B) 16 J
C) 64 J
D) 10 J
E) 80 J

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