Multiple choice

The resistivity of a uniformly doped n −type silicon sample is 0.5 ظ - mc. If the electron mobility ($\mu_0$) is 1250 cm2 / V-sec and the charge of an electron is 1.6 x 10-19 Coulomb, the donor impurity concentration (ND) in the sample is

  1. 2 x 1016 / cm3

  2. 1 x 1016 / cm3

  3. 2.5 x 1015 / cm3

  4. 5 x 1015 / cm3

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation