Magnetic Field outside AC Solenoid

[craig_e]

Hi

I have scoured the internet trying to find the right expression to calculate the magnetic field (B) outside of an AC driven solenoid. All i keep getting is stuff for DC driven or inside the solenoid.

Can anyone help?

thanks

Craig

[flexifirm]

Without looking up any references, what comes to mind is simply plugging in the time domain function of the current into any DC formula you have.

For example.. the formula probably has a capital I in it.... change that to small i then find the time domain function for i

like,

i = 6sin377

You'll end up with an answer that is also a trigonometric time varying function......

[faust9]

This might help:
http://www.physics.adelaide.edu.au/mathphysics/abstracts/ADP-AT-96-3.html

Try doing a google search using the term "Transient field outside of solenoid". You can also replace field with Magnetic or B-Field.

Good Luck