I have the understanding that in the electronics field capacitors
can never hold there charge for too long and even when not connected to
a circuit but still charged, they still discharge. I was wondering
why this is the case? I can only come up with the fact that it is possible
the air particles surrounding the positve and negative pins that conduct
away the charge from the capacitor eventually making it lose its charge.
Am I right. If so, storing them in a vacuum should prevent them discharging?
hanking you in anticipation.
Yes, you are right on both counts. However, remember that absolute vacuum
is never reached, and thus, given enough time, discharge will occur,
Dr. Ali Khounsary
Advanced Photon Source
Argonne National Laboratory
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Update: June 2012