- #1
yungman
- 5,755
- 292
I understand ##\vec A\rightarrow\vec A+\nabla \psi\;## as ##\;\nabla \times \nabla \psi=0##[tex]\Rightarrow\;\nabla\times(\vec A+\nabla \psi)=\nabla\times\vec A[/tex]
But what is the reason for
[tex]V\;\rightarrow\;V+\frac{\partial \psi}{\partial t}[/tex]
What is the condition of ##\psi## so
[tex]\nabla \left(V+\frac{\partial \psi}{\partial t}\right)=\nabla V[/tex]
Thanks
But what is the reason for
[tex]V\;\rightarrow\;V+\frac{\partial \psi}{\partial t}[/tex]
What is the condition of ##\psi## so
[tex]\nabla \left(V+\frac{\partial \psi}{\partial t}\right)=\nabla V[/tex]
Thanks