IBM 029 progress

9 Jun 2009

...

  Roger Holmes wrote:
  (incidentally, how come MF does not mean Mega
Farad)  
 Since the largest capacitor I have ever heard of is 100 Farads, it 
 really doesn't seem likely that there will be any confusion.

 I wonder how many Farads a car battery helds  
It doesn't. 

The 'intennal' difference being that a capacitor stores energy in an 
electrostatic field, a car battery stores it chemcially. The practical 
diffeeence being that a car battery can only be used close to its nominal 
voltage, a capacitor can be charged to any voltage up to its breakdown 
voltage (if I have a 12V capacitor, I can charge it to 3V, or 7V, or.. 
but I can't charge a car battery to anythign other than 12V).

-tony

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IBM 029 progress