- #1

- 461

- 0

[tex]\vec{B} = \nabla * \vec{A} = (B_x, B_y,B_z)[/tex]

[tex]\vec{E} = -\nabla*\phi-\frac{\partial \vec{A}}{\partial t} = (E_x,E_y,E_z)[/tex]

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter Philosophaie
- Start date

- #1

- 461

- 0

[tex]\vec{B} = \nabla * \vec{A} = (B_x, B_y,B_z)[/tex]

[tex]\vec{E} = -\nabla*\phi-\frac{\partial \vec{A}}{\partial t} = (E_x,E_y,E_z)[/tex]

- #2

UltrafastPED

Science Advisor

Gold Member

- 1,912

- 216

- #3

- 461

- 0

How do you solve for ##\vec{A}## and ##\phi## for a planet or star acting like a dipole or current loop? For the sun the equations only are valid every 11 years or so because the polarity reverses. Also the earth does not have a true North North Pole it is somewhere in Siberia.

Last edited:

- #4

UltrafastPED

Science Advisor

Gold Member

- 1,912

- 216

http://hanspeterschaub.info/Papers/UnderGradStudents/MagneticField.pdf

- #5

- 461

- 0

They look like this ##g^m_n## and ##h^m_n##

- #6

UltrafastPED

Science Advisor

Gold Member

- 1,912

- 216

See footnote 2; but NASA is shutdown this week.

Share: