Question

Based on Drift velocity and Mobility of electrons
Semiconductor mobility depends on the impurity concentrations, temperature and
electron and hole concentration. It also depends on the velocity saturation occs.
Conductivity is proportional to the product of mobility and cama concerts The
electron mobility characterizes bow quickly an electrocan move through a meslora
semiconductor, when pulled by an electric field. When we electric field sappi
across a piece of material the electron respond by moving with an avenge velocity called
the drift velocity
1) Electric field (E) and current density) have relation where e sproportional symbol
a) Eaj
b) Ea;
c) Els
2) The mobility of charge cames increases with
a) Increase in the average coscontime
c) Increase in the mass of the charge camers
d) Decrease m the charge of the mobile camers
3) The resistivity of an alloys and that of the content stale
d) There is no such relation between
4) Drift velocity ve varies with the intensity of the electric field as per the
a) Via bi Vale
VE
5) Which of the following characteristics of electron descamines the current na
2) Drift vclocity alone
c Both aria and thermal velocity
d) neighter drift nor thermal velocity​

Answer 1

Explanation:

concentrations, temperature and

electron and hole concentration. It also depends on the velocity saturation occs.

Conductivity is proportional to the product of mobility and cama concerts The

electron mobility characterizes bow quickly an electrocan move through a meslora

semiconductor, when pulled by an electric field. When we electric field sappi

across a piece of material the electron