Saturday, February 27, 2010

How many volts are generated when you brush your hair with a comb ? Approximately.?

Like this guy did


http://www.youtube.com/watch?v=ckuoe_n8F9E





Just an approximate number of volts.


ThanksHow many volts are generated when you brush your hair with a comb ? Approximately.?
precisely it's hard to measure but it is certainly in the range of a few thousand (1000 to 2000) volts! That's why you here the crackle because that is a tiny discharge (mini lighting strike) going on when electrons either jump from you or to you through the air. Air isn't a good conductor so it takes a very large amount of voltage to discharge electrons hence the crackle and visible spark.





The reason it isn't deadly is because the amps are very very small probably like micro amps. It's the same anology as a squirt gun, high pressure but low volume, you feel it but it doesn't hurt. Similarly if you take a fire hose (high pressure and high volume) then that can cause some serious damage. Same applies with electricity with pressure being an analogous to voltage and volume being analogous to amps with the squirt gun being static discharge and the fire hose being a power line.





Btw to precisely determine it you'd either have to measure the discharge somehow or just know how many electrons there are being discharged to apply coulomb's law and other's = hard to determine precisely to the number.

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