Drake
Physics
No.
Date :
Rc circuits
dis charging Capacitor
Charge or cap tmet:
C ++
#
R.
Q (+) . = Q.C-+/T
Q = initial Charge
T : Rc (Time Constant)
Capacitor voltage :
AVECt) = QCE) = Q.e t/T
C
AVc(H). A v.et/r
Current : I due to charge leaving cap
I - do = Q.et/T
at
experimental deray
Ex: start with Qo= I NC on capacator in Re.
W/ R= 1s , , C= I NF How long for Q(+)
Fandamental charge !
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