Nowadays as technology increases, our dependency seems to be straying away from gas and moving towards batteries, electronics, and outlets. Yet the idea of electric seems to correlate with voltage. While Electrical forces equals F= kQq/r^2, and fields equals E = f/q = kQ/r^2, voltage is another animal. Voltage is a ratio of potential energy over the charge. so one volt is equivalent to 1 joule of energy over 1 coulomb. Though sometimes you can see voltage as a huge number, it can be harmless depending on the ratio. A Coulomb itself is large, but for example, the Van De Graff generator pumps out 400,000 volts yet contains only a fraction of a Coulomb. (Hence it is why i am still alive today). Remember, just like speed, voltage is a ratio, which it is not necessarily the number you see. But if the Van De Graff generator DID have 1 Coulomb, I'm sorry to say, but you wouldn't see me here today. In this picture, I am showing a wall outlet, as an example of something with great voltage, enough to kill you, make you faint, or paralyze you. Can't touch that!
Welcome To My Blog!
This Blog contains all of my Journals for Iolani Physics 2008-2009.
Saturday, January 31, 2009
Can't Touch This!
Nowadays as technology increases, our dependency seems to be straying away from gas and moving towards batteries, electronics, and outlets. Yet the idea of electric seems to correlate with voltage. While Electrical forces equals F= kQq/r^2, and fields equals E = f/q = kQ/r^2, voltage is another animal. Voltage is a ratio of potential energy over the charge. so one volt is equivalent to 1 joule of energy over 1 coulomb. Though sometimes you can see voltage as a huge number, it can be harmless depending on the ratio. A Coulomb itself is large, but for example, the Van De Graff generator pumps out 400,000 volts yet contains only a fraction of a Coulomb. (Hence it is why i am still alive today). Remember, just like speed, voltage is a ratio, which it is not necessarily the number you see. But if the Van De Graff generator DID have 1 Coulomb, I'm sorry to say, but you wouldn't see me here today. In this picture, I am showing a wall outlet, as an example of something with great voltage, enough to kill you, make you faint, or paralyze you. Can't touch that!
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2 comments:
while a pic of you sticking a paper clip into the outlet would make for a more interesting shot, i'm glad you didn't
that would be pretty nutz though, especially if it emitted something visible lol
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