# Why does not dipole moment depend on coordinates system?

1. Oct 17, 2015

1. The problem statement, all variables and given/known data

This is problem 6.5 in Griffiths EM.
I can't understand why dipole moment does not depend on coordinate systems.
2. Relevant equations

3. The attempt at a solution

2. Oct 17, 2015

### pasmith

He's saying that $\mathbf{p}$ is constant in space, so its spatial derivatives vanish. Presumably this was stated in the problem statement.

3. Oct 17, 2015