Q3) (i) Calculate the electrical conductivity of a piece of pure Si if it is given the number of intrinsic carriers at 300 K is 1 x 1010 cm3 and that the electron and hole mobilities are He = 1350 cm?.V-1.s1 = 450 cm?.V-1.s1 respectively. and Answer: 0.00000288JUnits(2.cm)1 (ii) Compare the conductivities between Si and Cu at 300 K as calculated from Q2 and Q3(i). Answer: Q4) Following on from Q3, the temperature now increases to 350 K. Describe semi-quantitatively how and why the carrier concentration and the conductivity will change due to this temperature change for both these two materials (Si and Cu). Answer:
Q3) (i) Calculate the electrical conductivity of a piece of pure Si if it is given the number of intrinsic carriers at 300 K is 1 x 1010 cm3 and that the electron and hole mobilities are He = 1350 cm?.V-1.s1 = 450 cm?.V-1.s1 respectively. and Answer: 0.00000288JUnits(2.cm)1 (ii) Compare the conductivities between Si and Cu at 300 K as calculated from Q2 and Q3(i). Answer: Q4) Following on from Q3, the temperature now increases to 350 K. Describe semi-quantitatively how and why the carrier concentration and the conductivity will change due to this temperature change for both these two materials (Si and Cu). Answer:
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question in photo please. i attached Q 2
![Q3) (i) Calculate the electrical conductivity of a piece of pure Si if it is given the number of intrinsic
carriers at 300 K is 1 x 1010 cm3 and that the electron and hole mobilities are He = 1350 cm?.V-1.s-1
%3D
and
= 450 cm?.V-1.s1 respectively.
Answer:
0.00000288JUnits(Q.cm)1
(ii) Compare the conductivities between Si and Cu at 300 K as calculated from Q2 and Q3(i).
Answer:
Q4) Following on from Q3, the temperature now increases to 350 K. Describe semi-quantitatively
how and why the carrier concentration and the conductivity will change due to this temperature
change for both these two materials (Si and Cu).
Answer:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff76b43b9-ccee-44f5-a918-27c1f81bc882%2F7c1c96b1-a22a-4f4c-8315-a68727b5948f%2Fpoe8kg_processed.png&w=3840&q=75)
Transcribed Image Text:Q3) (i) Calculate the electrical conductivity of a piece of pure Si if it is given the number of intrinsic
carriers at 300 K is 1 x 1010 cm3 and that the electron and hole mobilities are He = 1350 cm?.V-1.s-1
%3D
and
= 450 cm?.V-1.s1 respectively.
Answer:
0.00000288JUnits(Q.cm)1
(ii) Compare the conductivities between Si and Cu at 300 K as calculated from Q2 and Q3(i).
Answer:
Q4) Following on from Q3, the temperature now increases to 350 K. Describe semi-quantitatively
how and why the carrier concentration and the conductivity will change due to this temperature
change for both these two materials (Si and Cu).
Answer:
![Q2) (a) Calculate the electrical conductivity of copper if it is given that the metal has 8.5 x 1022
conduction electrons per cm³ and the mobility of a conduction electron is 35 cm?.V-1.s1.
Answer:
476000 Units S/m](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff76b43b9-ccee-44f5-a918-27c1f81bc882%2F7c1c96b1-a22a-4f4c-8315-a68727b5948f%2Fo2e3xno_processed.png&w=3840&q=75)
Transcribed Image Text:Q2) (a) Calculate the electrical conductivity of copper if it is given that the metal has 8.5 x 1022
conduction electrons per cm³ and the mobility of a conduction electron is 35 cm?.V-1.s1.
Answer:
476000 Units S/m
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