FreshmanNewbie
Full Member level 6
The Van De Graff Generator can generator voltages in the kV and MV range.
I have read that if I touch the Van De Graff Generator producing, say 50kV, on one hand (myself being insulated from ground by plastic stool) and the other hand to the grounding rod, I don't get shocked because the current passing through me is less
At the same time, if I take 2 wires from the Live and Neutral from the AC Wall Sockets in home which is 120V or 220 depending on where you are from, and take the Live wire on one hand and take the neutral wire on the other hand (myself being insulated with the same stool), I might get fried. Because even though it has low voltage, it delivers high current
My questions :
I have read that if I touch the Van De Graff Generator producing, say 50kV, on one hand (myself being insulated from ground by plastic stool) and the other hand to the grounding rod, I don't get shocked because the current passing through me is less
At the same time, if I take 2 wires from the Live and Neutral from the AC Wall Sockets in home which is 120V or 220 depending on where you are from, and take the Live wire on one hand and take the neutral wire on the other hand (myself being insulated with the same stool), I might get fried. Because even though it has low voltage, it delivers high current
My questions :
- Which factor determines the current flow through the human body incase of the Van De Graff generator and the AC Wall Socket?
- Why is the current less in the generator case and why is it high in the AC Wall Socket case? Doesn't high voltage means high current? And Low voltage means low current? What am I missing here? Is the missing thing - the internal resistance?