Question B.1: Calculate the divergence of F = xi + yj + zk....

Calculate the divergence of \mathbf{F}=x \hat{\mathbf{i}}+y \hat{\mathbf{j}}+z \hat{\mathbf{k}} .

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\nabla \cdot \mathbf{F}=\frac{\partial}{\partial x}(x)+\frac{\partial}{\partial y}(y)+\frac{\partial}{\partial z}(z)=1+1+1=3 .

This is the vector field shown on the left in Figure B.1. Its divergence is constant everywhere.

Screenshot 2023-02-15 105019

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