Identical point charges (+30 $\mu$C)are placed at the corners of a rectangle (4.0 m *6.0 m).How much external energy is required to bring a charge of 55 $\mu$C from infinity to the midpoint of one of the 6.0-m long sides of the rectangle?
A)22 J
B)16 J
C)13 J
D)19 J
E)8.0 J

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The Answer of Identical point charges (+30 $\mu$C)are placed at the corners of a rectangle (4.0 m *6.0 m).How much external energy is required to bring a charge of 55 $\mu$C from infinity to the midpoint of one of the 6.0-m long sides of the rectangle?
A)22 J
B)16 J
C)13 J
D)19 J
E)8.0 J

Identical Point Charges (+30 μ\muμ C)are Placed at the Corners of a Rectangle (4

Identical Point Charges (+30 $\mu$ C)are Placed at the Corners of a Rectangle (4