Vector Calculus

A vector field $\vec{F}$ is solenoidal if and only if:

Options:

• (A) $\nabla \times \vec{F} = 0$
• (B) $\nabla \cdot \vec{F} = 0$
• (C) $\nabla (\nabla \cdot \vec{F}) = 0$
• (D) $\nabla^2 \vec{F} = 0$