Question

Find the mobility of electron in copper if there are 9x10*28 balance electron/m*3 and the conductivity of copper is 6x10*7mho/ m.

Answer 1

Answer:

Mobility of electrons in copper is 43.25 cm²/Vs.

Explanation:

Take a copper wire with 1cc volume weight = 8.96 g

8.96 No. of atom × No. of electrons = 63.5

0.8497×1023

No. of electrons = 0.8497×1023

Conductivity = 1 = no. of electrons ×

resistivity electronic charge ×

mobility of electrons

1061.7 = 0.8497×1023 × 1.6 ×10^-19

mobility of electrons = 43.25 cm²/Vs.