Question

what are the initial charges of rubber, fur, wool, silk, paper, yarn

Answer 1

they are uncharged materials although they posses free electrons

Answer 2

sagrrobo is correct:D good luck!

Answer 3

but why my professor asked us to find the initial charge, we will use it in our experiment for tomorrow

Answer 4

try to check the triboelectric series http://esdsystems.descoindustries.com/whitepapers/images/tribocharging_files/Image2.gif

Answer 5

thanks!

Answer 6

thank you for the replies :))