GATE Electronics and Communications (EC) 2012 Solved Paper

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Question : 45 of 65
 
Marks: +1, -0
The direction of vector A is radially outward from the origin, with n |A| = krn where r2 = x2 + y2 + z2 and k is a constant. The value of n for which ∇⋅A = 0 is
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