What is the magnetic field of a disc ?

Question

anonymous · Answer

Actually , what is the magnetic field of disc and sphere ? Why are thry not derieved in any book like that of ring and rod ?

anonymous · Answer

@ProfBrainstorm  , Could you please help me out ?

anonymous · Answer

do u still need help ?

anonymous · Answer

Yes , please :)

anonymous · Answer

do you mean the magnetic field due to a current passing through a disc or sphere?

anonymous · Answer

magnetic fields don't arise from static charges, but from electric currents - what kind of disc or sphere are you thinking about ?

anonymous · Answer

current is flowing in the disc or sphere ..

anonymous · Answer

In my books , they have derieved it for ring and rod.. I was wondering if there is a special reason why they did not derieve it for a disc or sphere like they had in electrostatics , to derieve their magnetic field . What do you say ?

anonymous · Answer

The reason is that the current has to have a complete path to flow around.