Blazing goIITian
Its 2 pie * R * * X / [ 4 pie ebsilon knot ( X 2 + R2) ]
.........for X >>>R ..it becomes 2 pie * R * / 4 pie epsilon knot X2
.........for X<<<R ..it becomes 2 pie * / 4 pie epsilon knot R
* X / [ 4 pie ebsilon knot ( X 2 + R2) ] / 4 pie epsilon knot X2 / 4 pie epsilon knot R 
Moderation Team
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