Person inside an isolated conductor

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Inside a large, hollow conductor with a charge, touching the inner surface while neutral will not cause harm, as the charge resides on the outer surface. However, if a person carries an opposite charge, they will induce a charge on the conductor's inner surface, potentially leading to electron movement when contact is made. This movement could result in an electric current, which may cause harm. The discussion also raises questions about the nature of electric shock and what specifically causes harm during such incidents. Understanding these principles is crucial for grasping the effects of electric charges in conductors.
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Homework Statement



You are inside a large, hollow conductor that is isolated from the ground. There is a large charge on the conductor. If you touch the inside of it, will you be harmed? What if you had a charge with opposite sign of that on the conductor?

Homework Equations



N/A

The Attempt at a Solution



I think that if you are neutral, you will not be hurt since all the charge is on the outside. The second part confuses me. If you are charged, you will induce a charge on the inside surface of the conductor. So when you touch it, there will be a movement of electrons (i.e. current) which will hurt you, right? Or will there not be since you are not grounded and there's no reason for the electrons to go from the sphere to you or vice versa?

Many thanks in advance!
 
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Thread 'Correct statement about size of wire to produce larger extension'
The answer is (B) but I don't really understand why. Based on formula of Young Modulus: $$x=\frac{FL}{AE}$$ The second wire made of the same material so it means they have same Young Modulus. Larger extension means larger value of ##x## so to get larger value of ##x## we can increase ##F## and ##L## and decrease ##A## I am not sure whether there is change in ##F## for first and second wire so I will just assume ##F## does not change. It leaves (B) and (C) as possible options so why is (C)...

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