# Orbiting a charged planet.

cragar
If I am orbiting a charged planet that is like being in free-fall around the planet.
So would I see a B field in my frame? Is me orbiting the planet the same as me floating in space and have the planet rotate.

Mentor
You would see a magnetic field. If you are charged as well, it would give an additional force downwards/upwards (depending on the charges).
If the charge is distributed on the surface (or the whole volume), a rotating planet would give a magnetic field, too - it would look different, but its shape really depends on the system where the field is calculated.

Naty1
So would I see a B field in my frame? Is me orbiting the planet the same as me floating in space and have the planet rotate.

yes;no

cragar
What if I was orbiting inside a spherical shell with charge on it, would I see a B field then?
The E field would be zero inside the charged shell.

Naty1
What if I was orbiting inside a spherical shell with charge on it, would I see a B field then?
The E field would be zero inside the charged shell.

as would the magnetic field...assuming the charge is uniformly distributed....

cragar
B field inside a spinning charged sphere is constant and positive