BE Civil Engineering Semester 1 (FE First Year)University of Mumbai
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# The mobility of holes is 0.025m2 /V-sec. what would be the resistivity of n- type Si if the Hall coefficient of the sample is 2.25× 10-5m3/C. - BE Civil Engineering Semester 1 (FE First Year) - Applied Physics 1

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ConceptConductivity, mobility, current density (drift & diffusion) in semiconductors(n type and p type)

#### Question

The mobility of holes is 0.025m2 /V-sec. what would be the resistivity of n- type Si if the Hall coefficient of the sample is 2.25× 10-5m3/C.

#### Solution

:-Given Data :-μh=0.025m2 /V-sec              RH=2.25×10-5m3 /C
Formula :-ρ= 1/σ , μ_h =σR_H
Calculations :- σ=μ_H/R_H =0.025/ 2.25×10^(-5)=1111.11mho⁄m
ρ=9×10Ω -4 -m
Answer:- Resistivity=9×10-4 Ω-m

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#### APPEARS IN

Solution The mobility of holes is 0.025m2 /V-sec. what would be the resistivity of n- type Si if the Hall coefficient of the sample is 2.25× 10-5m3/C. Concept: Conductivity, mobility, current density (drift & diffusion) in semiconductors(n type and p type).
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