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Three point charges 1 C, 2 C and 3 C are...

Three point charges 1 C, 2 C and 3 C are placed at the corners of a equilateral triangle. The length of triangle is 1 m. What would be the work required to put these charge on the corner of an equilateral triangle of length 0.5 m ?

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`W = 9.9xx10^(10)` j
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