Question
Two metal conducting spheres have charges +4.7 mu C (micro Coulombs) and - 2.1 mu C respectively. These two spheres are brought together (they touch) and then are separated. Answer the following questions: What is the charge each of the sphere's after they are separated? The elemental unit of charge is "e" and has the value 1.6 times 10^-19 C. How many elemental charges (how many "e") are there on each sphere? number of e You are given charges of in determine value and distance. All you know is the signs (+ or -) on the (equal) charges rightarrow Show the direction of the force vectors on charge 2 form the other two. Then with a dark arrow indicate rightarrow the direction of the net (combined) force vector on charge 2.
Explanation / Answer
1.
a)
Charge on each sphere
Q1=Q2=(4.7-2.1)/2=1.3 uC
b)
number of elemental charges on each sphere
N=(1.3*10-6)/(1.6*10-19)=8.125*1012 e's