.0124 W/cm-K. It has the shape of a rectangular bar with cross sectional area of 1 cm2and length of 3 cm. One end is maintained at 300 °C and the other end at 100 °C. The bar carries a current of 50 A and has resistivity of 1.5x10-3ohm-cm. Assuming the longitudinal surface is insulated, calculated the midpoint temperature in the ba

Q: You have a solid with a semicylindrical shape. One of the bases is located in θ = 0 , of area (r 2 -…

A: Given: The inner radius is r1 and outer radius is r2 So the mean radius→r=r1+r22 And due to steady…

Q: Question 5: Z=62 a. An iron sphere of mass (Z + 300)g is kept in a container having boiling water…

A: Answer (a) Given data: m=300+62=362 gT1=100°CT2=25.5°CC=452 J/kg Need to determine the heat absorbed…

Q: A bar of thermal conductivity k = 140 W/m ⋅ K is of a trapezoidal cross section as shown in the…

A:

Q: A solid body of length L with a rectangle cross section has a temperature distribution equals to : T…

A:

Q: A steel bar 7 cm long is welded end to end to a copper bar 21 cm long. Both bars are insulated…

A: The temperature at the junction of the two bars is 28.12oC.

Q: Thermal conductivity measurement for good conductors using Searle's Method

A: serale,s method is used to measure thermal conductivity of matter by using steam.

Q: A pipe made of material A have an outside diameter of 30 cm and inside diameter of 25 cm. The pipe…

A: Given:r0=15 cmri=12.5 cmt=31 cmKA=70 W/m.KKB=11 W/m.KT1=1200 KT2=1100 KT3=350 KL=1.31 m

Q: Calculate the heat transferred from the cube-shaped iron mass (a = 30 cm) to the environment at 20 °…

A: Given data: Sides of the cube (a) = 30 cm Temperature of the air (T0) = 20°C…

Q: The initial temperature distribution on a 5 cm long bar is given as f(x)=x(5-x).The circumference of…

A: Find the temperature distribution as a function of positionThe temperature distribution as a…

Q: What is the resistance R of a length of copper wire whose length = 10 m and whose diameter = 0.10

A:

Q: The Fourier heat conduction equation has been used to obtain the temperature-time response during…

A:

Q: Determine the resistance of a copper wire that has a cross-sectional area as 7.3 mm2. The length and…

A: Given Data  Cross sectional area, A= 7.3 mm2. Length of the copper wire, L=78.6 m  ELectrical…

Q: Consider a cylindrical steel pipe of an inner radius of 2.9m, an outer radius of 3.2m, and thermal…

A: Given A cylindrical steel pipeinner radius (r1)=2.9 mouter radius (r2)=3.2 mThermal conductivity…

Q: Determine the length of a copper wire that has a cross-sectional area as 9.8 mm2. The resistance and…

A: Ans is L=73.5m

Q: Determine the resistance of an aluminium coil of 183 cm as diameter consists of 13600 turns and the…

A: Given data: Diameter of aluminium coil d=1.83 m number of turns n=13600 Mean length per turn l=35.24…

Q: A wall has an overall U value of 0.25 W/m^2K. It includes a layer of insulation 50 mm thick. The…

A:

Q: Determine the length of a copper wire that has a cross-sectional area as 8.1 mm2. The resistance and…

A: Given: The cross sectional area of wire is A=8.1 mm2. The resistance of wire is R=14 Ω. The…

Q: The density of thermal current in a solid varies as: JT(x) = 1000e-x^2(W/m2) Find the equation for…

A:

Q: I need the answer as soon as possible

A:

Q: A semiconductor material with k = 2 W/m.K and electric resistivity, r =2x10-5 W.m, is used to…

A: Given: Thermal conductivity of material k=2 WmK Electric resistivity r=2×10-5Wm Length of rod L=40…

Q: A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first…

A:

Q: Heat loss through an insulation (k = 0.05 W/m·C) is 125 W/m2. The temperature gradient across the…

A:

Q: Suppose the sphere in problem 2-15 is covered with a 1-cm layer of an insulating material having k =…

A: given data; ⇒layer thickness of insulating material (t)=1cm⇒conductivity of insulating material…

Q: a metal bar is made up of 3.0 cm of aluminum and 5.0 cm of steel. the free end of the aluminum bar…

A: Given data:

Q: For a current carrying wire of 20 mm diameter exposed to air (h=20 W/m²K), maximum heat dissipation…

A: Given data,  h= 20 W/m²K  K=0.5 W/mK  d=20 mm

Q: Consider the 2D heat conduction problem for a plane fin (see the figure below)Find/derive the heat…

A: Heat transfer through the fin can be obtained using Fourier law of heat conduction equation-

Q: shows a plane wall of thickness Δx = 21 cm with a thermal conductivity k=0.7 W/(mK).  Given that the…

A:

Q: Question 9 the dimensions of the faces of each block be 3 m by 2 m. Also, the conductivity of copper…

A: We are authorized to answer one question at a time since you have not mentioned which question you…

Q: 5. Given below is a log-log plot of thermal conductivity (K7) vs temperature (T) of a non-metallic…

A: Solution:

Q: Determine the resistance of a copper wire that has a cross-sectional area as 8.2 mm2. The length and…

A: AS PER COMPANY GUIDELINES, ONLY ONE QUESTION CAN BE SOLVED. FOR SOLUTION OF OTHER QUESTION, KINDLY…

Q: Find the conduction resistance of a composite plane wall made of three materials of conductivity 100…

A: Here this will be the thermal circuit for the composite walls with materials of conductivity 100…

Q: Two plates, one of aluminum with a tickness of 14mm and one of brass with thickness of 9mm were…

A: Given: The thickness of aluminium plates, L1 = 14 mm = 0.014 The thickness of brass plates, L2 = 9…

Q: Determine the resistance of an aluminium coil of 174 cm as diameter consists of 14200 turns and the…

A:

Q: Some types of bacteria containchains of ferromagnetic particles parallel to their long axis. The…

A: Certain types of bacteria are placed in a magnetic field of solenoid made of copper wire of certain…

Q: Consider a composite wall of overall height H = 30 mm and thickness L = 40 mm. Section A has…

A:

Q: the resistance of the coil.

A: Given: n= 2000 d=2.5 mm= 0.0025 m l=80 cm =0.8 m ρ=0.02 μΩm=0.02×10-6 Ωm To determine: The…

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.