Drift current practice problems
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A piece of silicon is n-type with a uniform donor doping concentration of ND = 5.0e+18 cm-3.
The electron mobility is μn = 124 cm2/Vs.
What are the conductivity and resistivity of this silicon?
A resistor with resistance R = 250 Ω will be made using this silicon.
The resistor's cross-sectional dimension are W = 10 μm and t = 5 μm.
How long should the resistor be?