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Diffstat (limited to '3845/CH20/EX20.3/Ex20_3.sce')
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diff --git a/3845/CH20/EX20.3/Ex20_3.sce b/3845/CH20/EX20.3/Ex20_3.sce new file mode 100644 index 000000000..173b5632a --- /dev/null +++ b/3845/CH20/EX20.3/Ex20_3.sce @@ -0,0 +1,15 @@ +//Example 20.3
+n_A=6.02*10^23;//Avagadro's number (atoms/mol)
+atomic_mass=63.54;//Atomic mass of copper (g/mol)
+rho=8.80*10^3;//Density of copper (kg/m^3)
+n=1*n_A*(1/atomic_mass)*1000*rho;//Free electron density (e-/m^3)
+//n=(1e-/atom)*(6.02*10^23atoms/mol)*(1mol/63.54g)*(1000g/kg)*(8.80*10^3kg/1m^3)
+r=(2.053/2)*10^-3;//Radius of copper wire (m)
+A=%pi*r^2;//Cross-sectional area of wire (m^2)
+I=20;//Current (A)
+q=-1.60*10^-19;//Charge of an electron (C)
+v_d=I/(n*q*A);//Drift velocity (m/s)
+printf('Drift velocity of electrons = %0.2e m/s',v_d)
+//Openstax - College Physics
+//Download for free at http://cnx.org/content/col11406/latest
+
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