engineering recuitment MAHATRANSCO AE Electrical Mock Test Electromagnetic Theory Vector Calculus Vector Operators
If a vector field B is solenoidal, which of these is true?
1
\(\mathop \oint \nolimits_L^{} B \cdot dl = 0\)
2
\(\mathop \oint \nolimits_s^{} B \cdot ds = 0\)
3
∇ × B = 0
4
∇ ⋅ B ≠ 0
5
None of the above