EC > GATE 2015 SET-3 > Vector Calculus
A vector field D = 2ρ2 aρ + z az exists inside a cylindrical region enclosed by the surfaces ρ=1, z=0 and z=5. Let S be the surface bounding this cylindrical region. The surface integral of this field on S (∮S D · ds) is __________.
Correct : 78.5
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