Can a high-Vdc power supply be an electrostatic generator?

Click For Summary
A high-voltage DC power supply can function as an electrostatic generator by placing equal but opposite charges on two conductors. The discussion highlights that any DC voltage source, even a low voltage like a AA battery, can create a nonzero charge between its terminals. The Van de Graaff generator is mentioned as a traditional method for generating static charge through the triboelectric effect. The key takeaway is that moving parts are not necessary to achieve static charging; a static DC supply can suffice. This opens up possibilities for experiments without mechanical components.
uby
Messages
172
Reaction score
0
Hello all,

I am interested in placing a static charge on a conductor by means of an electrical circuit. One way to do this is by means of a Van de Graaff generator which uses the triboelectric effect to generate net charges, then places them onto two conductors having equal but opposite charges. For example, connecting a conductor to the metal sphere at the top of a typical Van de Graaff generator would result in charging of that conductor to the same potential as the sphere.

I'd like to perform the same experiment using a device without moving parts, if possible. I have a high voltage DC power supply available: is there any way this can be used as an electrostatic generator to place equal but opposite charges on two identical conductors?

Thanks!
 
Engineering news on Phys.org
Yes, any DC supply can do that. I think you have the misconception that you must have high voltage, to achieve a charge. Any DC voltage, even a AA, battery puts a nonzero charge on one terminal relative to the other terminal.
 
Thread 'I thought it was only Amazon that sold unsafe junk'
I grabbed an under cabinet LED light today at a big box store. Nothing special. 18 inches in length and made to plug several lights together. Here is a pic of the power cord: The drawing on the box led me to believe that it would accept a standard IEC cord which surprised me. But it's a variation of it. I didn't try it, but I would assume you could plug a standard IEC cord into this and have a double male cord AKA suicide cord. And to boot, it's likely going to reverse the hot and...

Similar threads

  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 8 ·
Replies
8
Views
2K
Replies
19
Views
2K
Replies
61
Views
9K
Replies
5
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
Replies
4
Views
2K
Replies
7
Views
2K
  • · Replies 4 ·
Replies
4
Views
1K