Creating Electric Shock With Battery?

Question

How do I create and electric shock with a battery, I saw it before where i think a 12v batter had 2 wires connected to it and there was metal clamps on the end snd a remote thingy that controlled how much shock was created ans how many watts were used. Where can i learn to make that for my science fair?

Answer 1

try looking into transformers, a good example are those large power blocks that plug into a wall and change 120V AC into smaller voltages like 12V DC. These devices contain a transformer which changes the higher voltage of 120V AC to something smaller like 12V AC, and then a rectifier changes the AC voltage into DC. The transformer uses a winding ratio to change the voltage. There are also electromagnetic properties that explain why this works, but I will leave that to you to learn if you wish. Anyhow, you need to do two things to create a decent shock. First obtain a transformer, the higher the turns ratio the more voltage you can create.

For example the power bricks I mentioned that changes 120V AC to 12V DC has a 10:1 ratio. you must remove the rectifier, as it won't be needed. so if you were to take out the transformer, and apply a 12V surge to the "more" winding side, then a 120V surge would theoretically come out the other side. This is simply the opposite job that the transformer was originally doing. This surge could be created simply by taping a switch on and off on the 12V supply (battery). If you want to see a really neat shock, look up "tesla coils" here the transformers have severely high turns ratios and result in 100's of thousands of volts and jump electrical arcs or shocks for several feet. If you try any of this stuff, please be careful the more power you play with the more responsibility you need to practice to keep from hurting yourself.

Answer 2

Olalah! TRANSFORMERS DO NOT WORK WITH DC CURRENT!!!! There are alternating devices only. Remeber dV/dt???
However, you can use a transformer like the one offered above.
It will work, but NOT how it is explained.
To the 12V side, now our primary inductor, connect your battery through a switch.
Use the other 120 side to give the shock trough electrodes.
When you flick the switch closed, a current starts to flow through the primary. This will look like a short circuit to the battery, so it won't last long before your battery runs out.
At the time you RELEASE the switch, the inductor effect will create a high dV / dt (from 12 V to 0V in very short time). The energy will be transferred to the secondary and the voltage will be amplified, giving shock.
The shock will last a few milliseconds and is rather harmless.
Another way is to use a relay in the primary,. to cause a near square wave input on your transformer. The high dV/dt, and its repetition, will give a VERY high voltage at the output. Careful!
(because the energy is e = dV/dt, and t is very small, the winding ratio of the transformer (ie 10:1) will NOT give you 120V, but MUCH MORE.)
Transformers are calculated to convert an AC voltage, usually SINE wave, usually at 50 or 60Hz. Since you are inputing SQUARE wave (a much higher dV/dt), the output will not be in relation to the winding ratio...

Answer 3

simple shocker 12volt car battery 2 wires one connected to positive and your index finger. the other connected to negative and a rowe of thumb tacks spaced one forth inch apart connect the tacks with jumper wires. use about 10 tacks. take a piece of aluminum foil in the other hand. rub down the row of tacks. that should send a bug up your leg.the more tacks and the more positive pressure on the foil the bigger the bite.