// e be the electron charge in coulombs (c)
e=-1.6*10^-19;
 
// n be the no. of electrons
 
n=4600;
 
//total charge q in coulombs (c)
 
q=n*e;


disp("q=")
disp(q)
units='coulombs C'; 
q1=[string(q) units]; 
disp(q1)
// In coulombs


// the total charge is -7.36*10^-16 coulombs