A slab of the type of is 20-m long, 2-m thick, and 5-m wide (1 m 5 1024 cm), and has been uniformly doped with 1014/cm3 atoms of phosphorous. If a 1-V battery is connected across the slab, fi nd: (a)...

A slab of the type of is 20-m long, 2-m thick, and 5-m wide (1 m 5 1024 cm), and has been uniformly doped with 1014/cm3 atoms of phosphorous. If a 1-V battery is connected across the slab, fi nd: (a) the electric fi eld E inside the slab; (b) the drift velocities of electrons and holes; (c) the electron and hole drift currents (compare, comment); (d) the average time taken by an electron and a hole to drift along the entire length of the slab; (e) the resistance R of the slab.