A disc has charge distribution sigma and radius R . What is the Electric Field in N/C at a point P , located a distance x directly above the center of the disc?Write your answer in terms of sigma, R ,x , k, and pi (type "pi"). Indicate multiplication with a "*" and division with a "/".

Answer 1

http://www.jiskha.com/display.cgi?id=1382331843

Answer 2

thank you very much