Answer:
[tex]1.25\times 10^{19}\ electrons[/tex]
Explanation:
r = Rate of flow of charge = 20000 C/s
t = Time taken = 100 μS
Charge is given by
[tex]Q=rt\\\Rightarrow Q=20000\times 100\times 10^{-6}\\\Rightarrow Q=2\ C[/tex]
The charge that flows between the ground and the cloud in this time is 2 C
Number of electrons is given by
[tex]n_e=\dfrac{Q}{e}\\\Rightarrow n_e=\dfrac{2}{1.6\times 10^{-19}}\\\Rightarrow n_e=1.25\times 10^{19}\ electrons[/tex]
The number of electrons is [tex]1.25\times 10^{19}\ electrons[/tex]
