[SI-LIST] Re: what is the conductivity of a dielectric?

Rob,

I believe 'time varying fields' is not the only condition. To bring 
displacement current into play, the other condition is the geometry of 
structure(incl. material). 

Let us consider two mundane examples: 1) ordinary light bulb, and 2) 
florescent(tube light) bulb - both excited by time varying fields. How 
would you explain displacement current in each case?

Thanks,
Sainath



---------Included Message----------
>Date: Fri, 12 Apr 2002 13:15:24 -0700
>From: "Rob Hinz" <rob@xxxxxxxxxx>
>Reply-To: "Rob Hinz" <rob@xxxxxxxxxx>
>To: <gigabit@xxxxxxxxxx>
>Cc: <si-list@xxxxxxxxxxxxx>
>Subject: Re: [SI-LIST] Re: what is the conductivity of a dielectric?
>
>Sainath,
>
> Any time you have time 
>varying electric fields you will have displacement current. Therefore 
any 
>structure that is excited by time varying fields will be described, in 

>part, by displacement current. 
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