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Resistance of the cell is not given so we take it as R
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f. You bought a PEMFC with efficiency S4 % and active area 100 cm, what is the output voltage of the Fuel cell? Suppose power density of this fuel cell S0 mw/cm2, what is the output current of this f...
Q2. Consider an ideal solar cell (area 200 cm2) under 1 Sun with following parameters: Isc...
Q2. Consider an ideal solar cell (area 200 cm2) under 1 Sun with following parameters: Isc 10 A; 1o 1 nA current LOAD a) Draw the equivalent circuit diagram for this ideal solar cell. (5 points) b) What is the open circuit voltage for this solar cell? (5 points) c) What is the load current when voltage across the load is V-0.55 V. (5 points)? d) How much power is lost in the solar cell when V= 0.55V under i...
Hydrogen and oxygen gases are utilized as reactants for fuel cells. Hydrogen gas is oxid side to ...
Hydrogen and oxygen gases are utilized as reactants for fuel cells. Hydrogen gas is oxid side to generate protons and electrons which move to the cathode side to react with oxygen to produce electricity and water as byproduct. Molecular weight: M(H2) -2 g/mol, M(O)-32 g/mol, M(H-0) - 18 g/mol. Detailed reactions in each side are described below: ized in the anode (-) side: | (+) side: Cell: H2 → 2H+ + 2e- E" 0.00V 202 + 2H+ + 2e-→ H2O...
could you please help me go through these Two similar questions with a detailed explanation? Many thanks A photo voltaic cell generates an open circuit voltage of 0.72 V and a short circuit curr...
could you please help me go through these Two similar questions
with a detailed explanation?
Many thanks
A photo voltaic cell generates an open circuit voltage of 0.72 V and a short circuit current of 350 mA whenmiated by light wi ketch the V-I characteristic of the cell under these conditions. Estimate the open circuit voltage and the short circuit current when illuminated by a light with power density of 600 Wm 8. ith power density 1000 Wms 3. The...
1) Useful parameters for CdTe a. ni- 1e8 cm 3 2) kT 25.8mev Problem #1 (100 points) Consider an ideal, long-diode type solar cell made of a CdTe abrupt asymmetrical PN junction. The relevant properti...
1) Useful parameters for CdTe a. ni- 1e8 cm 3 2) kT 25.8mev Problem #1 (100 points) Consider an ideal, long-diode type solar cell made of a CdTe abrupt asymmetrical PN junction. The relevant properties of the p-type CdTe absorber are: thickness - 3 um, doping - le14 cm3, electron mobility 100 cm2/V/s, and electron lifetime 10 ns. The n type region is doped much higher than CdTe 1. Calculate the saturation current density 2. Calculate the short-circuit current, assuming...
1. at what voltage the current density in a p-n diode reaches a magnitude of 10 A/cm^2 ? the diode is made by doping with boron are phosphorous with concentrations of 10^18 and 10^19 cm^-3, respec...
1. at what voltage the current density in a p-n diode
reaches a magnitude of 10 A/cm^2 ? the diode is made by doping with
boron are phosphorous with concentrations of 10^18 and 10^19 cm^-3,
respectively.
3. A MOSFET is made on silicon substrate doped with boron with a concentration of 10" cm. Width and length of channel are 100 and O.1 micron respectively. Thickness of the oxide insulator under the gate is 10 nm. Find transconductance of this transistor...
Module 6: Performance parameters of Solar Cell (Total points 16, Bonus 5) 1. Following is I-V...
Module 6: Performance parameters of Solar Cell (Total points 16, Bonus 5) 1. Following is I-V data of a perovskite double junction tandem solar cell, obtained at standard testing condition (STC). The solar cell has length 10 mm and width 10 mm. (Points 21) Data # | 1 Voltage -0.23 0.08 0.00 0.23 0.53 0.83 098 1.13 1.28 1.43 1.58 1.731 Current -11 10.8 10.6 10.298 9.2 -8.8 8 6 4 02 (mA) I-V Characeristics 2.5 Voltage/ 12 a. At...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible proce...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
A retaining wall is to be constructed in a normally consolidated clayey sand deposit in the...
A retaining wall is to be constructed in a normally consolidated clayey sand deposit in the figure below. Ground water table is lmbelow the bottom of the excavation. A 20 kN/m2 surcharge pressure is applied over a wide area at the ground surface. Assume the wall moves into the excavation. Consider long-tem analysis (as it is usually the more critical analysis in excavation problems). Ignore capillarity as shown 20 kPa Clayey sand T17 kNm Y-20 kNm 5 m c'-10 kPa...
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
Q2. Consider an ideal solar cell (area 200 cm2) under 1 Sun with following parameters: Isc 10 A; 1o 1 nA current LOAD a) Draw the equivalent circuit diagram for this ideal solar cell. (5 points) b) What is the open circuit voltage for this solar cell? (5 points) c) What is the load current when voltage across the load is V-0.55 V. (5 points)? d) How much power is lost in the solar cell when V= 0.55V under i...
Hydrogen and oxygen gases are utilized as reactants for fuel cells. Hydrogen gas is oxid side to generate protons and electrons which move to the cathode side to react with oxygen to produce electricity and water as byproduct. Molecular weight: M(H2) -2 g/mol, M(O)-32 g/mol, M(H-0) - 18 g/mol. Detailed reactions in each side are described below: ized in the anode (-) side: | (+) side: Cell: H2 → 2H+ + 2e- E" 0.00V 202 + 2H+ + 2e-→ H2O...
could you please help me go through these Two similar questions
with a detailed explanation?
Many thanks
A photo voltaic cell generates an open circuit voltage of 0.72 V and a short circuit current of 350 mA whenmiated by light wi ketch the V-I characteristic of the cell under these conditions. Estimate the open circuit voltage and the short circuit current when illuminated by a light with power density of 600 Wm 8. ith power density 1000 Wms 3. The...
1) Useful parameters for CdTe a. ni- 1e8 cm 3 2) kT 25.8mev Problem #1 (100 points) Consider an ideal, long-diode type solar cell made of a CdTe abrupt asymmetrical PN junction. The relevant properties of the p-type CdTe absorber are: thickness - 3 um, doping - le14 cm3, electron mobility 100 cm2/V/s, and electron lifetime 10 ns. The n type region is doped much higher than CdTe 1. Calculate the saturation current density 2. Calculate the short-circuit current, assuming...
1. at what voltage the current density in a p-n diode
reaches a magnitude of 10 A/cm^2 ? the diode is made by doping with
boron are phosphorous with concentrations of 10^18 and 10^19 cm^-3,
respectively.
3. A MOSFET is made on silicon substrate doped with boron with a concentration of 10" cm. Width and length of channel are 100 and O.1 micron respectively. Thickness of the oxide insulator under the gate is 10 nm. Find transconductance of this transistor...
Module 6: Performance parameters of Solar Cell (Total points 16, Bonus 5) 1. Following is I-V data of a perovskite double junction tandem solar cell, obtained at standard testing condition (STC). The solar cell has length 10 mm and width 10 mm. (Points 21) Data # | 1 Voltage -0.23 0.08 0.00 0.23 0.53 0.83 098 1.13 1.28 1.43 1.58 1.731 Current -11 10.8 10.6 10.298 9.2 -8.8 8 6 4 02 (mA) I-V Characeristics 2.5 Voltage/ 12 a. At...
Chose the correct answer(s) from the multiple choice lists below 1. Exergy of a system is a) b) always increasing e) guided by the first and second laws of thermodynamics for reversible processes only Un d) limited by the second law of thermodynamics for all processes. processes, it is destroyed partly or completely). e) equal to the Gibs free energy of the system. 211two electrodes, one made of u (E.-3.06 V) and another made of Cu ΟΕ.+034V placed in an...
A retaining wall is to be constructed in a normally consolidated clayey sand deposit in the figure below. Ground water table is lmbelow the bottom of the excavation. A 20 kN/m2 surcharge pressure is applied over a wide area at the ground surface. Assume the wall moves into the excavation. Consider long-tem analysis (as it is usually the more critical analysis in excavation problems). Ignore capillarity as shown 20 kPa Clayey sand T17 kNm Y-20 kNm 5 m c'-10 kPa...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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