[Robotgroup] do the math ... check the math

[Def Egge]

At 21:31  2008-07-26, you wrote:
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 >A capacitor holding a 1.5V charge will not give you 1.5V except
 >at t=0.
 >
 >You may want to look at:
 > http://hyperphysics.phy-astr.gsu.edu/Hbase/electric/capdis.html
 >to see the curve characteristics of a discharging capacitor.
 >
 >Alberto
 >
 >
 >On Sat, 2008-07-26 at 20:43 -0500, Def Egge wrote:
 >> I am still looking at the world through a violent headache but
 >>
 >>
 >> 	1 Farad = (1000 mA x 1 s) / 1.0 v
 >>
 >>  From wikipedia: 1 Farad is the amount of capacitance that 
requires
 >
 >> one second for a one ampere flow of charge to change the voltage 
by
 >
 >> one volt.
 >>
 >> So, that same 1 Farad is the amount of capacitance that requires 
150
 >
 >> s for a 10 mA flow of charge to change the voltage by 1.5 v ?
 >>
 >> Is it fair (or accurate) to conclude that a charged 1 Farad 1.5 v 

 >> supercapacitor could supply 20 mA for 75 s ?
 >>
 >> Thanks.
 >>
 >
 >
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 >Robotgroup at puremagic.com
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That was one of my favorite physics lab exercises ... thinking 
through a headache is like drinking and driving.

Thanks for the reminder.


-- 

All the best....

Mike