1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Can static go upto 20k?

  1. Mar 16, 2014 #1
    i heard that when we rub a finger on a nonconducting material 20000v gets generated,we don't get electrocuted because of low current.is that true?....really 20k?..
    i got a earful when i touched a smd ic from my professor,thats why i had this doubt....so any help please??
  2. jcsd
  3. Mar 16, 2014 #2


    User Avatar

    Staff: Mentor

    It's a little more complicated than that. You can build up a static charge on your body equal to thousands of volts depending on the conditions you're in. See the following PDF for some basic ESD safety. I found this online by searching for "static discharge", so there is a wealth of info out there if you want to look it up.

  4. Mar 16, 2014 #3


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Static electricity voltages can go much higher than 20 Kvolts. Van de Graaff generators can go as high as 20 MV (20 million volts) and produce artificial 'lightning' bolts.

Share this great discussion with others via Reddit, Google+, Twitter, or Facebook