engineering recuitment ISRO Scientist Electronics Mock Test Electromagnetic Theory Vector Calculus Fundamental Theorems of Vector Calculus
Consider a closed surface S surrounding a volume V. If \(\vec r\) is the position vector of a point inside S, with \(\hat n\) the unit normal on S, the value of the integral \(∯_s {5\vec r} \cdot\hat n\ d\vec s\) is
1
3 V
2
5 V
3
10 V
4
15 V