Question

The intrinsic carrier density in germanium crystal at 300 K is 2.5 × 10¹³ per cm³ . If the electron density in an N-type germanium crystal at 300 K be 0.5 × 10¹⁷ per cm³ , the hole density (per cm³) in this N-type crystal at 300 K would be expected around- 

(A) 2.5 × 10¹³ 

(B) 5 × 10⁶ 

(C) 1.25 × 10¹⁰ 

(D) 0.2 × 10⁴

Answer 1

Correct Answer is: (C) 1.25 × 10¹⁰