All Questions
14
questions
12
votes
2
answers
2k
views
Which electrons kill you during electrocution?
I understand that there are three velocities in play in a circuit (I haven't studied Physics past high school so give me some rope)
v1: the velocity by which the electrical field propagates through ...
9
votes
5
answers
3k
views
How does the electrical ground rod work?
I was reading this article about shock current path, but it seems to be contradicting answers that I have seen on this site regarding electric shock. I can't find the original question but it was ...
- 275
2
votes
2
answers
3k
views
Why is high voltage more deadly than low voltage?
Why is higher voltage said to be more dangerous? Doesn't higher voltage decrease current as P = IV where P is constant, thus making it less deadly?
- 323
1
vote
4
answers
1k
views
Why exactly do we feel a shock when we place our hand into a conducting solution?
I have a very naive question.
Suppose you have pure water in a flask, and you place two ends of a copper wire (which are connected to a battery) into the water.
If you were to place your hand into the ...
- 669
3
votes
4
answers
4k
views
How much current will go through my body if I were to put my finger in an outlet?
i know this is a silly question, but i couldn't manage to wrap my head around it. I am kinda new to electronics.
My home's outlets provide 220V. Upon doing some (a lot) research, the current that ...
- 41
0
votes
2
answers
133
views
Why is electrocution dangerous to humans and animals?
As far as I understand electric current is nothing more than the flow of electrons, that is, charge. So, my question is, what exactly happens when charge/electrons flow through our body and why is ...
- 492
3
votes
7
answers
5k
views
Why is high voltage dangerous?
High $V$ low $A$ electricity is transformed into low $V$ high $A$ through a step down transformer for safer use in homes.
But how is it any safer? The wattage is the same for the pre-transformer ...
- 1,821
1
vote
2
answers
172
views
Does duration affect how lethal a current is?
It's been said in many places that it's not voltage that kills you but the source's current (or more so a combination of the two), but take a current of 0.1A which can be considered fatal. Would a 0....
- 29
0
votes
2
answers
241
views
Is 220 V, 50 A equally dangerous for a person as 1A, 11000 V? [duplicate]
The question is self-explanatory. I'm a high school student so feel free to use scientific terms.
- 737
2
votes
1
answer
3k
views
How many watts of electricity can the human body withstand without being killed?
I'm talking about DC and/or AC. I've read about people surviving extremely high voltage shock (300kV) but that could be explained by extremely high resistance in the circuit that resulted insufficient ...
- 41
-1
votes
2
answers
84
views
Why do many animals die at the same time when lighting hits surroundings?
I have been reading about many cases in history of lighting striking and killing dozens even hundreds of animals, to be more specific quadruples, at the same time. Apparently this doesn't happen with ...
0
votes
1
answer
684
views
Electric discharge through my knuckle
In some particular days, it seems that my car is somehow at a different potential from the ground. When I get out my car and I wear my sneakers (that I think are better insulators than other kind of ...
- 1,764
4
votes
1
answer
221
views
At what distance is lightning dangerous for someone lying down?
My 8 yo child told me that they learned at school that they should lay down flat on the ground in case of lightning. I told him that the more correct position is crouching down with feet together, but ...
- 516
1
vote
1
answer
59
views
When I put 2 electrodes into a electrical conductive solution, does the volume of the solution around the electrodes have biological effect?
Media these days give me a common sense that it is able to hurt someone if they step on a wet floor with a electric cord dipped in, several movies have this scene.However, I wonder if I set up an ...
- 183