Three points charges of `1 C, 2C and 3C` are placed at the corners of an equilateral triangle of side 100 cm. Find the work done to move these charges to the corners of a similar equilateral triangle of side 50 cm.

Three point charges 1C, 2C and 3C are placed at the corners of an equilaternal triangle of side 1m . The work required to move these charges to the corners of a smaller equilaternal triangle of side 0.5 m in two differenct ways as in fig. (A) and fig. (B) are W_(a) and W_(b) then:

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