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RE: Electrocuting oneself
November 26, 2015 at 1:16 am
When I read the OP, what first came to mind was Dr. Emilio Lizardo.
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RE: Electrocuting oneself
November 26, 2015 at 1:30 am
(November 25, 2015 at 9:19 pm)Cato Wrote: (November 25, 2015 at 6:55 pm)Quantum Wrote: Do you think induced voltage depends on resistance?
Of course not. Having reread my post I see the potential confusion in my reply. I used 'and' to invoke an additional condition, not as 'therefore' where the validity of the latter statement was dependent on the former.
The material affected when considering electromagnetic induction is assumed to be a conductor, a general classification of materials (e.g. metals) that have the requisite molecular structure to support the concept of 'free' electrons dictated primarily by valence orbital sharing of electrons. For example, your not going to be very successful inducing a voltage in pure water.
I wish I could have said it so succinctly.
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RE: Electrocuting oneself
November 26, 2015 at 1:46 am
Which is resistance. Yes, induced voltage depends on resistance. The less resistance, the higher the voltage.
You make people miserable and there's nothing they can do about it, just like god.
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God has no place within these walls, just as facts have no place within organized religion.
-- Superintendent Chalmers
Science is like a blabbermouth who ruins a movie by telling you how it ends. There are some things we don't want to know. Important things.
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RE: Electrocuting oneself
November 26, 2015 at 2:37 am
(This post was last modified: November 26, 2015 at 2:52 am by Alex K.)
(November 26, 2015 at 1:46 am)IATIA Wrote: Which is resistance. Yes, induced voltage depends on resistance. The less resistance, the higher the voltage.
But that is not true if you put a negligible load to it. By itself, the voltage induced should only depend on the change in magnetic flux, not the resistance - only when you hook up a load to it, will the voltage be reduced in accordance with the resistance of the body which provides an.internal resistance of the body as a current source. But for our electrocution thought experiment, it is sufficient to argue that without load, the voltage will be the same as in the wire, because then it follows that there is no voltage difference and hence no current. Since for a moving object in a constant magnetic field
Electomotive force = Area swept per time * magnetic field
This should hold
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RE: Electrocuting oneself
November 26, 2015 at 2:54 am
(This post was last modified: November 26, 2015 at 2:54 am by Alex K.)
@Omnibus
Thanks! We do observe holidays in general, but in Germany, Thanksgiving does not exist in this form, go figure 
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
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RE: Electrocuting oneself
November 26, 2015 at 11:30 am
If I get motivated this long weekend, I have some copper wire, aluminum wire, steel wire and neodymium magnets. I will acquire some empirical data.
You make people miserable and there's nothing they can do about it, just like god.
-- Homer Simpson
God has no place within these walls, just as facts have no place within organized religion.
-- Superintendent Chalmers
Science is like a blabbermouth who ruins a movie by telling you how it ends. There are some things we don't want to know. Important things.
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RE: Electrocuting oneself
November 27, 2015 at 2:03 am
Be sure to use a high impedance volt meter
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Electrocuting oneself
November 27, 2015 at 2:27 am
(November 25, 2015 at 5:29 pm)Quantum Wrote: Sorry I was teasing you a bit with my questions, I thought you knew that I'm a physicist by training. But the issue is still, there will be a voltage induced along your body, and I am pretty certain that it will be the same as in a wire.
So if I took an AC motor apart and replaced the rotor with a ham, it would still work.
The stator would induce current in the ham and the ham would rotate.
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RE: Electrocuting oneself
November 27, 2015 at 2:46 am
(This post was last modified: November 27, 2015 at 3:04 am by Alex K.)
(November 27, 2015 at 2:27 am)KUSA Wrote: (November 25, 2015 at 5:29 pm)Quantum Wrote: Sorry I was teasing you a bit with my questions, I thought you knew that I'm a physicist by training. But the issue is still, there will be a voltage induced along your body, and I am pretty certain that it will be the same as in a wire.
So if I took an AC motor apart and replaced the rotor with a ham, it would still work.
The stator would induce current in the ham and the ham would rotate.
In principle, yes, absolutely! if you made the effort to create some sort of insulated coil out of your ham. But your coil made of "ham wire" has such large resistance that the resulting currents will be minuscule for usual mains voltages, and the resulting torque likewise.
Yes, you can make an electromagnet out of meat.
Edit:
If you just stuck a solid chunk of ham in there instead of forming a coil, and hooked it up to the AC, the magnetic geometry would in general not be in the right direction to induce rotation. More importantly, the magnetic field strength is proportional to the number of windings - so a solid ham would lose a factor of a few hundred in performance on those grounds alone. You *would* get a nicely fried ham out of it, though, and who needs torque when you have that...
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RE: Electrocuting oneself
November 27, 2015 at 2:55 am
I fucking love me some Uncle K.
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