Question
In: Physics
A bar of n-type Si with a cross-sectional area of 1 mm x 1 mm and...
A bar of n-type Si with a cross-sectional area of 1 mm x 1 mm and a length of 1 cm is connected to a 2 V battery and is carrying a current of 2 mA at 300 K. (a) Calculate the thermal equilibrium electron and hole concentrations in the bar. (b) Calculate the dopant concentration assuming that only donors with energy level 0.148 eV away from the conduction band are present. (c) Determine the temperature at which the bar will become intrinsic.
Solutions
genius_generous answered 1 year agoRelated Solutions
A metal bar of uniform cross sectional area is placed between a room at 5°F and...
A
metal bar of uniform cross sectional area is placed between a room
at 5°F and a room at 30°C. Half of the length of the bar is made of
aluminum, the other half is made of iron, what is the temperature
in the middle of the bar?
A long solenoid (n = 1500 turns/m) has a cross-sectional area of 0.40 m2 and a...
A long solenoid (n = 1500 turns/m) has a
cross-sectional area of 0.40 m2 and a current given by
I = 3.0t A, where t is in seconds. A
flat circular coil (N = 500 turns) with a cross-sectional
area of 0.15 m2 is inside and coaxial with the solenoid.
What is the magnitude of the emf induced in the coil at t
= 2.0 s?
Results obtained from a tension test on a bar of uniform cross section 10 mm x...
Results obtained from a tension test on a bar of
uniform cross section 10 mm x 10 mm subjected to an axial pull of
8000 N were tabulated. The lateral dimensions of the bar were found
to be changed to 9.9985 mm x 9.9985 mm while using a material
having modulus of rigidity equal to 0.8 x 107 N/cm2. By determining
the values for different moduli, identify the properties of
material and establish the relationship between them. What changes
will...
Results obtained from a tension test on a bar of uniform cross section 10 mm x...
Results obtained from a tension test on a bar of uniform cross
section 10 mm x 10 mm subjected to an axial pull of 8000 N were
tabulated. The lateral dimensions of the bar were found to be
changed to 9.9985 mm x 9.9985 mm while using a material having
modulus of rigidity equal to 0.8 x 107 N/cm2. By determining the
values for different moduli, identify the properties of material
and establish the relationship between them. What changes will...
Results obtained from a tension test on a bar of uniform cross section 10 mm x...
Results obtained from a tension test on a bar of uniform cross
section 10 mm x 10 mm
subjected to an axial pull of 8000 N were tabulated. The lateral
dimensions of the bar were found
to be changed to 9.9985 mm x 9.9985 mm while using a material
having modulus of rigidity equal
to 0.8 x 107 N/cm2. By determining the values for different moduli,
identify the properties of
material and establish the relationship between them. What changes
will...
Results obtained from a tension test on a bar of uniform cross section 10 mm x...
Results obtained from a tension test on a bar of
uniform cross section 10 mm x 10 mm subjected to an axial pull of
8000 N were tabulated. The lateral dimensions of the bar were found
to be changed to 9.9985 mm x 9.9985 mm while using a material
having modulus of rigidity equal to 0.8 x 107 N/cm2. By determining
the values for different moduli, identify the properties of
material and establish the relationship between them. What changes
will...
1. Does the doubling of thickness in membranes affect the cross-sectional surface area or the diffusion...
1.
Does the doubling of thickness in membranes affect the
cross-sectional surface area or the diffusion coefficient in Fick's
Law of Diffusion?
2. Which of these reasons describe Darwin's concept of
evolutions as "descent with modification": 1. the constant changes
in the environment 2. phylogenetic constraints 3. genetic
drift
3. Explain how evolutionary and ecological processes can take
place over the similar time period?
A cylinder of height 10 cm and cross sectional area of 1 cm2 is submerged inside...
A cylinder of height 10 cm and cross sectional area of 1
cm2 is submerged inside two immiscible liquids of
specific gravity 1.1 and 1.0 respectively.
The cylinder is in equilibrium in such a way that 5 cm of its
height is submerged in the bottom liquid and 2 cm above the surface
of the two liquids.
In order the cylinder to be completely submerged inside the two
liquids find the value of the mass of an object that needs...
A squared cross- sectional bar of 3cm by 3cm is under a compressive stress of 300...
A squared cross- sectional bar of 3cm by 3cm is under a
compressive stress of 300 MPa. The bar deforms elastically, what is
the area of the cross section after deformation. Provide your
answer in milimeters squared. (Do not type in the unit in your
answer.) (E=30GPa, v=0.4)
Copper, brass and steel rods are welded to form a ?. The cross sectional area of...
Copper, brass and steel rods are welded to form a ?. The cross
sectional area of each rod is 2.00 ??2. The free end of
the copper rod is held at 100.0 ° ?; and the free ends of the brass
and steel rods, at 0.0 ° ?. Suppose there is no heat loss from the
sides of the rods, the lengths of which are: copper, 13.0 ??;
brass, 18.0 ??; steel, 24.0 ??. a) What is the temperature of...
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