How many charged particles were transferred? Plastic rod charged to -15.0 nC touches a metal sphere. After that, the rod has a charge of -10.0 nC.
nC = 5.0 nC = 5.0 x 10*-9 C Change in charge = -10.0 – (-15.0)
The electrons are transferred.
Magnitude of charge on an electron = 1.6 x 10^-19 C
Number of charged particles transferred = 5.0 x 10^-9/(1.6 x 10^-19)
= 3.125 x 10^10
Ans: 3.125 x 10^10
Until I’m missing something obvious, you basically subtract. On the rod, -11 nC were transferred. Since all electrons are electrons, You can solve the problem by converting nC to debris. Look up C (Coulombs). The nano skill is 10*-9.
Since the charge is quantized, the charge of one particle is 1.9×10^-19C
so the charge transfer is 5×10^=9C
so the no of charges = (5×10^-9)/(1.9×10^-19)=2.63×10^10 particles