QI. In a P-type germanium, n, = 2x10" electrons/m' and the density of boron 4x102 atoms/m. The electrons and holes mobility are (0.4 and 0.2 m2/ V. s) respectively. What is its conductivity before and after addition of boron atoms? %3D

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Electronics Physics -HW2
Q1. In a P-type germanium, ni = 2×10" electrons/m and the density of
boron 4x1023 atoms/m'.
The electrons and holes mobility are (0.4 and 0.2 m2/ V. s) respectively.
What is its conductivity before and after addition of boron atoms?
Note: For after addition of boron atoms you need to compare the
actual and approximate conductivity
ملاحظة: بعد اضافة ذرات البورون يكون حساب التوصيليه بالاستخدام التقريب وبدون استخدام
التقريب والمقارنة بين النتانج
Transcribed Image Text:Electronics Physics -HW2 Q1. In a P-type germanium, ni = 2×10" electrons/m and the density of boron 4x1023 atoms/m'. The electrons and holes mobility are (0.4 and 0.2 m2/ V. s) respectively. What is its conductivity before and after addition of boron atoms? Note: For after addition of boron atoms you need to compare the actual and approximate conductivity ملاحظة: بعد اضافة ذرات البورون يكون حساب التوصيليه بالاستخدام التقريب وبدون استخدام التقريب والمقارنة بين النتانج
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