Quote:
Originally Posted by Steffen
How does that follow? If there's (non-static) magnetism then electric fields would also be present, but not necessarily current. That requires charged particles. And if there is current, plasma isn't the only medium or aggregate state that can supply charged particles.
Cheers
Steffen.
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Hi Steffen... The presence of magnetic field would require a 'change' in electric field. So yes comments where of charge separation, and the change in electric field. M-Fields are not frozen in.
It is this flowing electric change in field (whether carried by electrons and/or ions) is what i was referring to 'electric current'.
Plasma isn't the only medium? I'm not sure what you mean here? Well we need a conductor, i'm happy to roll with plasma, since it's 99.9% of the matter in the universe.... other suggestions? Wire?
Just about every space probe they send out now, has a Langmuir probe on it... to measure this current.
Best,