//Example 20.2
delta_Q_electrons=-0.300*10^-3;//Charge (C)
delta_t=1;//Time (s)
I_electrons=delta_Q_electrons/delta_t;//Current due to flow of electrons (C/s)
q=-1.60*10^-19;//Charge per electron (C)
printf('Number of electrons passing per second = %0.2e electrons/s',I_electrons/q)
//Answer varies due to round off error
//Openstax - College Physics
//Download for free at http://cnx.org/content/col11406/latest