1.

The resistivity of pure silicon is 3000 Omegam . The resistivity of a specimen of material when 10^(19) "atoms//m^3 of phosphorus are added ("given" mu_e=0.12 m^2//V "sec", mu_n=0.045 m^2//V-"sec")

Answer»

`7.5 OMEGAM`
`5.2 Omegam`
`10.5 Omegam`
none

Answer :B


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