engineering recuitment NIELIT Scientific Assistant Mock Test 2025 Engineering Mathematics Calculus Vector Calculus
If we get a force \(\vec F\)and potential function ϕ then _________ will be
1
\(\nabla .\vec{F}=0\)
2
\(\nabla \times \vec{F}=0\)
3
∇ϕ = 0
4
Δ2ϕ = 0