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The value of the surface integral  evaluated over the surface of a cube having sides of length a is is unit normal vector)
  • a)
    zero
  • b)
    a3
  • c)
    2a3
  • d)
    3a3
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The value of the surface integralevaluated over the surface of a cube ...
 ...(i)
S, represents the surface of a cube having sides each of length   being unit normal vector to the surface.
Problem is to evaluate I. We know from Gauss’s divergence theorem

So, using Eq. (ii) for Eq. (i), we get


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Most Upvoted Answer
The value of the surface integralevaluated over the surface of a cube ...
 ...(i)
S, represents the surface of a cube having sides each of length   being unit normal vector to the surface.
Problem is to evaluate I. We know from Gauss’s divergence theorem

So, using Eq. (ii) for Eq. (i), we get


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