Aplastic rod that has been charged to â14 nc touches a metal sphere. afterward, the rod's charge is â1.0 nc . how many charged particles were transferred?
express your answer using two significant figures.

Explanation:

Initial charge on the rod is

final charge on the rod is

now the charge transferred from to the sphere is given as

now we also know that

Q = Ne

so number of particles transferred is

+15-35=-20

going in opposite directions