377/CH15/EX15.9/15_9.sce


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disp("Emax=q*Na*d/Єs");
q=1.6*10^-19;
Na=6.42*10^18;
d=50*10^-8;
es=12.9*8.854*10^-14;//say es=Єs
Emax=q*Na*d/es;
printf('\n The value of Emax is %fkV/cm',Emax*10^-3);