The neutral temperature for Cu Fe thermocouple is 270 °C. If the temperature of cold junction is 35 °C, what will be temperature of inversion ?

Q: A copper-constantan thermocouple generates a voltage of 4.75 x 10-3 volts when the temperature of…

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Q: 3.2-3 What area of a rectangular aperture is needed to produce a radiated power of 5 kW if its…

A: Given, Eaξ,ζ=150a^x+200a^y0 Radiated power,P=5 kW=5×103WIntrinsic impedeance of free space,η0=120π…

Q: Show that for an ideal gas _ c p = _ c v + Ru.

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Q: 6.31 A spherical shell has inner and outer radii a and b, respectively. Assume that the shell has a…

A: Given data,Inner radius=aouter radius=bConductivity=σ

Q: A Si sample in thermal equilibrium at 300 K is doped with 1 x 1019 phosphorus atoms. Determine the…

A: Given data, Density of donor atoms = 1x1019 m-3 Mobility of electron in Si at room temperature =…

Q: What is the physical significance of the Biot number? Is the Biot number more likely to be larger…

A: Biot number is the ratio of conduction resistance within the body to convection resistance at the…

Q: *7. Go A copper-constantan thermocouple generates a voltage of 4.75 × 10-3 volts when the…

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Q: The vacancy concentration for a metal A at a temperature T is 1.1 x 10°20. Calculate the vacancy…

A: Vacancy concentration=1.1*10^-10=exp(-q/kT)    To find Vacancy concentration at 2T;

Q: The sensitivity of a thermocouple is 0.05 mV/K. If the voltage range is from 0-50 mV and the lowest…

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Q: Silicon has a conductivity of 5x10-4 (Q.m)-1 when pure. How many arsenic atoms/m3 are required so…

A: The conductivity of an intrinsic semiconductor is given as σ=qniμe+μhq is the charge of an…

Q: A copper phone wire has essentially no snag between poles 35m apart on a winter day when the…

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Q: Car manufacturers are developing engines that use H2 as fuel. In Iceland, Sweden, and other parts of…

A: Given: V=3.5 x 106 L P=12.0 atm Voltage potential=1.44 V Formula used; PV=nRT

Q: Why is it that only electrons near EF contribute to the electrical and thermal conductivity? Explain…

A: In metals, the Fermi energy gives us information about the velocities of the electrons which…

Q: The conductivity of germanium at 20°C is 2/ Ohm m. What is its conductivity at 40°C? Eg=0.72eV

A: The ratio of electrical conductivity of germanium at two different temperatures is

Q: At 100 degree celsius, Copper (Cu) has a lattice length of 3.655 x 10^-10 m.  What is its density at…

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Q: poorly designed electronic device has two screws attached to different parts of the device that…

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Q: The conductivity of a metal is 5.6 x 105 Ohm-¹cm-¹ and the density is 8.92 g/cm³ with an atomic mass…

A: Given data, Density d=8.92 g/cm3 Conductivity σ=5.6×105 Ω-1cm-1 Atomic mass A=62.5 g/mol

Q: Determine the breakdown voltage using Rogowski electrodes with spacing of 2.5 mm and 25 mm and at…

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Q: rature of the ho For Cn : a =-

A: Given as, Cu⇒a=0.6mv,b=0.008mvkCn⇒a=-20mv,b=-0.056mvk

Q: A type S thermocouple uses a 0 degree C reference junction.  What voltage (in mV) will be generated…

A: Given : S type thermocouple  Reference temperature is 0oC. Junction temperature is 1272oC.

Q: A. Rubber Band [ Select ] B. Paper Clip [Select] C. Toothpick [ Select] D. Iron Nail [ Select] E.…

A: Conductor: those objects which have free electrons in them and they conduct electricity. Insulators:…

Q: A copper-constantan thermocouple generates a voltage of 4.75 x 10-3 volts when the temperature of…

A: Given:-  A copper thermocouple generates a voltage V1 = 4.75 x 10-3 V at the temperature of T =…

Q: at room temperature (K - lensity is 2.33 g cm³, a are with its value a

A: Given as, α=3.6×10-6K-1, K=99 GPa, Debye temperature= 625 K, Density in 300 K= 2.33 g cm-3, Lattice…

Q: Silicon atoms with a concentration of 7x 1010 cm3 are added to gallium arsenide GaAs at T = 400 K.…

A: Given,  The concentration of the silicon atoms, N=7×1010cm-3 85% of the concentration replaces…

Q: estimate the excess temperature for a 1mm diameter horizontal 20cm long chromal wire submerged in a…

A: Given, Current=43A Voltage=14V Distance=20cm

Q: QI. In a P-type germanium, n; = 2x10" electrons/m' and the density of boron 4x10" atoms/m. The…

A: SOlution: Given that interinsic carrier, ni = 2x1019 /m3mobility of electron μe =0.4 m2 /vsmobility…

Q: When a metal is heated, its atoms vibrate more about their position in the lattice (a network of…

A: Given: The internal diameter of the copper ring: DC=50 mm The diameter of the shaft: Ds=50.05 mm The…

Q: T = T + T-TH 1+k (k,+k,)/k,k,

A: Temperature of Copper-Aluminium junction = T1Temperature of Aluminium-Brass junction = T2Boiling…

Q: (Electroplating) A steel part with surface area A = 130 cm² is to be tin-plated. What average…

A: I = 12 + 0.2t After time, 't', Next infinitly small time 'dt' let heat deposited 'dQ' ∴ dQ = 2.50 ×…