Many thanks for your suggestion.
I'll have a try to get time constant of my system.
Additionally, the present experimental setup (non-contact between water and electrode) is perferred due to some pratical reasons, but we'll also think of your advice.
Thanks again.
Thanks, mfb.
I found a detailed value of Debye length of pure deionized distilled water, it wrote as 1 μm.
http://www.uic.edu/classes/phys/phys450/MARKO/N005.html
I think it would be fine compared with 400 μm distance, right?
Regarding timescale of screening, is there any other way to solve...
Regarding diffusion issue, I think your aforementioned "typical length" might be "debye length", which is the distance over which significant charge separation can occur.
I look for the relative info online (wiki and http://www.uic.edu/classes/phys/phys450/MARKO/N005.html), generally the...
Many thanks for your reply
I once used the following equations to calculate Ec, the initial electric field inside microchannel ("initial" here means before induced electric field formation by OH- and H3O+ ions in water );
U=2Eb + Ec (Eq.1)
Eb/Ec=εc/εb (Eq.2) (electric field is inversely...
Many thanks for your reply.
Do you think, when DC is applied, the induced electric field by H+ and OH- ions inside H2O-filled microchannel would be instantaneously strong enough to balance the external electric field? Then no net electric field inside microchannel?
First, I’d like to say that this is not homework, but my research work. I’ll be very appreciated if someone could help me to address this issue, many thanks in advance.
My experimental purpose is to generate uniform electric field inside microchannel by externally-applied electric field...