For intrinsic Si at room temperature, the electron concentration = the hole concentration = 1 × 1016m−3, and the electron and hole mobilities are 0.1 and 0.2 m2. V−1. s−1 respectively. What is the room temperature electrical conductivity? The charge of an electron is 1.6 × 10−19C.
(A) 0 (W.m)– 1 (B) 1.6 × 10 – 4 (W.m)– 1
(C) 3.2 × 10 – 4 (W.m)– 1 (D) 4.8 × 10 – 4 (W.m)– 1
σ = ne e (μe + μp ) since ne = np Putting all the values σ = 1016 × 1.6 × 10-19 (0.1 + 0.2) σ = 4.8 × 10-4 (W.m)-1 (d)
σ = ne e (μe + μp ) since ne = np
Putting all the values
σ = 1016 × 1.6 × 10-19 (0.1 + 0.2)
σ = 4.8 × 10-4 (W.m)-1 (d)
See lessCorrect answer is option D. @Arpita Samal described it best. Thank you.
Correct answer is option D. Arpita Samal described it best. Thank you.
See lessOption D is correct
Option D is correct
See less