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What is a Farad?


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Mad Scientists 
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Posted: April 02, 2005 at 5:55 PM / IP Logged  

 Oh.. devil's advocate.. I *like* this game..

  The cap is wired in parallel with the alternator and the battery. describe a situation where the cap could become completely discharged without the battery and alternator being affected. At most I'd suspect you'd see some voltage drop in the wiring, but nothing close to 0v..

 I'm thinking that the cap would actually help reduce the heavy spikes that the alternator might see during heavy base.. isn't the reason for installing a cap is to help eliminate the dimming light effect?..

 Jim 

83malibuRida 
Member - Posts: 46
Member spacespace
Joined: January 21, 2005
Location: Georgia
Posted: April 03, 2005 at 5:39 AM / IP Logged  
hmmm....he has a point
Nick Scott
DYohn 
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Joined: April 22, 2003
Location: Arizona, United States
Posted: April 04, 2005 at 5:15 PM / IP Logged  
FYI, it is impossible for a capacitor to "become completely dischsrged" unless the battery is also "completely dischsrged" and the alternator is producing zero volts.  A capacitor will maintain whatever system voltage happens to be.
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Mad Scientists 
Silver - Posts: 380
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Joined: February 07, 2004
Location: United States
Posted: April 04, 2005 at 7:27 PM / IP Logged  

Exactly.. under normal operating conditions the battery, alternator, and cap should all be around the same voltage.. excluding voltage drop in the wiring.

 Jim

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