# dicharging capacitor through resistor

Discussion in 'General Electronics Chat' started by aimaldaudkhan, Jul 29, 2013.

1. ### aimaldaudkhan Thread Starter Member

Jan 25, 2013
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0
hello all i want to know that how to discharge capacitor through resistor what is the formula that i use to discharge a capacitor

2. ### Shagas Active Member

May 13, 2013
802
74
http://www.electronics-tutorials.ws/rc/rc_1.html

AAC (this forum) also has tutorials on this stuff .
And if you are looking for a practical answer .... You just connect any capacitor thorough a 100ohm resistor and it will discharge safely

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3. ### crutschow Expert

Mar 14, 2008
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4,318
The value of resistor determines how fast the capacitor discharges. The RC time-constant (R x C) is the time it takes to discharge to about 37% of its previous value. In 5 time-constants it will discharge to less than 1% of the previous value.

4. ### Ron H AAC Fanatic!

Apr 14, 2005
7,049
659
That link only seems to have the charge equation. Here's the discharge equation:

$v=v_{init} (e^{\frac{-t}{RC}})$

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Nov 30, 2010
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6. ### aimaldaudkhan Thread Starter Member

Jan 25, 2013
38
0
thanks guys really appropriate u all <3