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clear
//
//
//
//Variable declaration
rho=1.50*10**-8 //resistivity(ohm m)
n=6.5*10**28 //conduction electrons(per m**3)
e=1.602*10**-19 //charge(c)
m=9.11*10**-31 //mass(kg)
//Calculation
tow=m/(n*e**2*rho) //relaxation time(sec)
//Result
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