Q: For a Si conductor of length 5um doped n-type at 1015scm-3. Calculate the current density for an applied voltage of 2.5v across its length u, = 1500 cm- (Ans. 8.82 x 10-2A/cm2).

Needs Complete typed solution with 100 % accuracy.

Problem 3: A 1.2 g wire has a density of 2.7 g/cm3 and a resistivity of 2.7 × 10−8 Ωm. The wire has a resistance of 15 Ω. a) How long is the wire? b) The wire is made up of atoms with valence 1 and molar mass 26.98 g/mol. What is the drift speed of the electrons when there is a voltage drop of 30 V across the wire?

A steady 4.46-mA current is present in a wire of diameter 1.0 mm. Calculate the drift velocity of the electrons, in nanometers per second, knowing that the concentration of free electrons is 1.87 x 1028 electrons per cubic meter. The charge of the electron is 1.60 x 10-19C.