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//Example 23.2
B=5*10^-5;//Earth's magnetic field strength (T)
l=20*10^3;//Length of conductor (m)
v=7.80*10^3;//Orbital speed (m/s)
emf=B*l*v;//Motional emf induced (V)
printf('Motional emf induced = %0.2e V',emf)
//Openstax - College Physics
//Download for free at http://cnx.org/content/col11406/latest