# Capacitor Basic

Thread Starter

#### eknow

Joined Jan 30, 2007
2
Hi.. struggling with basics
A capacitor stores charge.. right.. so if I charge a capcitor to some high voltage and then if sb holds it accidentally would he/she get a slight shock from the charge present in the capacitor..

#### n9352527

Joined Oct 14, 2005
1,198
Yes.

567890

#### SANJ

Joined Jan 27, 2007
1
Hi.. struggling with basics
A capacitor stores charge.. right.. so if I charge a capcitor to some high voltage and then if sb holds it accidentally would he/she get a slight shock from the charge present in the capacitor..
OF COURSE.WHEN SB HOLDS A CHARGED CAPACITOR, THE STORED VOLTAGE IN IT GETS DISCHARGED THROUGH THE BODY OF THE PERSON WHO HOLDS IT. IT IS THEREFORE TAKEN AS AN SAFETY PRECAUTION TO DISCHARGE AN CAPACITOR BEFORE DE-SOLDERING IT.

#### Salgat

Joined Dec 23, 2006
221
OF COURSE.WHEN SB HOLDS A CHARGED CAPACITOR, THE STORED VOLTAGE IN IT GETS DISCHARGED THROUGH THE BODY OF THE PERSON WHO HOLDS IT. IT IS THEREFORE TAKEN AS AN SAFETY PRECAUTION TO DISCHARGE AN CAPACITOR BEFORE DE-SOLDERING IT.
Please don't do all caps.

#### Mazilla

Joined Jan 31, 2007
2
Hi.. struggling with basics
A capacitor stores charge.. right.. so if I charge a capcitor to some high voltage and then if sb holds it accidentally would he/she get a slight shock from the charge present in the capacitor..
If you accidentally charge the capacitor by some high voltage and sb hands this one he/she becomes very happy .

note that capcitor is charged better throught a diode.
do the next:

Rich (BB code):
               that's diode
<----------|<|---------------
| +
---
~240                        ---    <-- that's cap. (not less than 10uF)
|
<-----------------------------
To avoid short circuit in AC line use the resistor in serial with diode.
Capasitor will be charged up to 240 * sqrt(2) = 340 V. It should be enough to affect the result.

I recommend to use ampermetre to monitor the current value through victim of your experements (not less than 0.1 amps).

P.S.: plz don't do this

Thread Starter

#### eknow

Joined Jan 30, 2007
2
thanks...
340V is the rms value right?

#### nanobyte

Joined May 26, 2004
120
What value of resistor should be used in series with the diode? How would you determine the right value?

#### kubeek

Joined Sep 20, 2005
5,757
No, the 340 is the peak value, because there is no discharging between the cycles.

Similar threads