Determine the resistance of an aluminium coil of 115 cm as diameter consists of 14900 turns and the mean length per turn is 3192 cm. Take the electrical conductivity of the aluminium coil as 0.3 MS/m. Solution: Aron o cootion the Coil (in m2)
Q: 0.2 kg is hung from a spring w hose spring constant An object of nass m = is 80 Nim-. The body is…
A: The net force acting on the body, Fnet=Restoring force due to spring+Resistive force Fnet=-Kx+(-bv)…
Q: The temperature gradient in a slab at steady conduction is - l000°C/m. The slab conducts heat at 250…
A:
Q: prive an expression for the curvature of a spherical surface in terms of the freque e surface and…
A: Since, both questions are different. As per answering guidelines and honor code i can answer 1st.…
Q: Determine the heat transferred through the composite wall shown in the figure and the overall heat…
A: Given, The thermal conductivities of respective sections lengths of each section heat transfer…
Q: A pipe carrying hot water at 90°C and having an outer diameter of 0.4 m is buried parallel a water…
A:
Q: Find the temperature at r = 0.5 cm after 75 seconds of exposure.
A: Find the temperature at r = 0.5 cm after 75 seconds of exposure.
Q: The compartment below is used as a freezer of refrigerator compartment. Inner wall is at -15 C and…
A:
Q: Determine the heat flux for a furnace wall made of fire clay if the furnace wall thickness is 6’’…
A: Given Data⇒ Wall thickness∆t=6'' Since we know that : 1 inch=0.0254 m ∆t=6×0.0254∆t=0.1524 m Thermal…
Q: What is meant by the term one-dimensional when applied to conduction
A:
Q: A manufacturer of loose-fill cellulose insulating material provides a table showing the relationship…
A: Consider k as the thermal conductivity of the material, x as the thickness and R as the thermal…
Q: An array of 190 electrical components, each dissipating P = 35 W, are attached to the bottom surface…
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: Choose the false statement? We can express lumped capacitance relation as the combination of…
A: Fourier law is a measure of heat conducted through an object with respect to heat stored. Therefore…
Q: want to know how much heat the tube lost due to the material it is made of. Even if it is a small…
A:
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: 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: What is the length of a copper tube with the heat loss of 500 Watts? A hot liquid which is 40℃ flows…
A: Find the length of copper tube.
Q: - A conductor transfers heat of 3000 Ja in 6 seconds. Given cross it's length of 20 cm Hat it's…
A: Note: Since you have asked multiple question, we will solve the first question for you. If you want…
Q: Determine the resistance of an aluminium coil of 183 cm as diameter consists of 14500 turns and the…
A: The resistance of a material is directly dependent upon the length of that material and inversely…
Q: An office space contains one (6'x 3') well- fitted door made of nominal 2" wood. The heat loss…
A: Given data: Tbi=80° F=299.817 KTo=-10° F=249.817 KA=6×3 ft2=1.67225 m2t=2 in=0.0508 mQ=517.2…
Q: For your company you need to mass produce 20-cmx10-cm heat sinks to dissipate heat quickly from an…
A: Given data, Dimension of the base/sink = 0.2 m×0.1 m Convective heat transfer coefficient of the…
Q: Determine the resistance of an aluminium coil of 129 cm as diameter consists of 15400 turns and the…
A: To find: The area of cross section of the coil, total length and resistance of the coil. Given: The…
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: A glass rod is 115 mm long and 12 mm in diameter experiences a temperature rise of 73 °C. Determine…
A: Given data: L=115 md=12 mm∆T=73°Cα=7.8×10-6°C-1 Need to determine the change in volume.
Q: The compartment below is used as a freezer of refrigerator compartment. Inner wall is at -8 C and…
A: Option C is correct K=0.097 w/mk
Q: Conductio Homeworl s The insode.of your house is 3o'C. The well, 3D em thic h. Up outside 5°C, You…
A:
Q: If 3 kW is conducted through a section of insulating material 0.6 m2 in cross section and 2.5 cm…
A:
Q: Variation of the surface temperature of a pin fin is shown in the Figure. According to the figure,…
A: Given data
Q: Determine the resistance of an aluminium coil of 174 cm as diameter consists of 14200 turns and the…
A:
Q: (2) The pipeline made of steel tube with a diameter of 150x5mm, should be covered with two layers of…
A: The mathematical formula for the thermal resistance per unit length of a hollow cylinder is given as…
Q: 9. A small transformer is placed in a metal box. The box has a height of 10 cm, depth of 0.75 m, and…
A:
Q: A 3-meter - long steel pipe has its upper end leaning against a vertical wall and lower end on a…
A: Please refer to the detailed solution given below, Answer - OPTION B = 0.00894 rad/sec.
Q: The amount of heat flow through a body by conduction is Directly proportional to the surface area of…
A: As per Fourier's law of heat transfer, amount of heat flow rate is given by, Q = k A ∆T∆x Here, Q =…
Q: Determine the resistance having a surface area of 1.14 m2 for a temporary insulating wall of a food…
A:
Q: Question One: Derive expressions for determining the change in length for the following bodies b P…
A: As you asked for 1st, question refer below images
Q: Determine the resistance of an aluminium coil of 140 cm as diameter consists of 15800 turns and the…
A: GIVEN THAT : aluminium coil diameter (d) = 140 cm N = 15800 turns mean length per turn (Lm) =…
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…
Q: A ball made of steel alloy with a diameter of 2 millimeters is first heated to 800 degrees and then…
A: Given: Diameter of the ball (d)=2mmInitial temperature of the ball (Ti)=800°CTemperature of the…
Q: A furnace wall is constructed of an inner layer of 12.7 mm of refracter material, a middle layer of…
A:
Q: Carbon steel shafts of 0.2 m diameter and 1.2 m long are heat treated in a gas-fired furnace whose…
A:
Q: Find the minimum amount of diameter for the insulation of a cylindrical electrical cable? Radius of…
A: Answer- Not sufficient information.
Q: A cylindrical insulation for a steam pipe has an inside radius of 5 cm, an outer radius of 10 cm,…
A: Given:Inside radius,r=5 cm=0.05mOuter radius,R=10 cm=0.10 mThermal conductivity,K=0.5WmKInside…
Q: Determine the resistance of an aluminium coil of 197 cm as diameter consists of 13100 turns and the…
A:
Q: Determine the resistance of an aluminium coil of 183 cm as diameten mean length per turn is 4883 cm.…
A: Given Data : Diameter of coild=183 cm=1.83 mNumber of turnsN=14500 turnsMean length per turn(l)=4883…
Q: Determine the resistance of an aluminium coil of 102 cm as diameter consists of 15900 turns and the…
A:
Q: 2 A solar collector wth an area of 1.5 m is installed on the rooftop of a heuse. Assume that the…
A: Given: Area of the collector (A)=1.5m2Irradiation from the sun=1000W/m2Heat transfer coeeficient…
Q: Calculate the heat loss per linear ft from 2 in. nominal pipe (2.375 in. outside diameter) covered…
A:
Q: Write down the Fourier heat conduction equation and explain the meaning of each term in the equation…
A:
Q: The third question: Discuss the effect of the free path rate on the heat conduction process of a…
A: Free electrons collide with metal ions as they travel through the metal. The ions absorb some of…
Step by step
Solved in 2 steps with 2 images
- The heat transfer coefficient between a surface and a liquid is 57 W/(m2K). How many watts per square meter will be transferred in this system if the temperature difference is 10C?1.29 A spherical interplanetary probe with a 30-cm diameter contains electronic equipment that dissipates 100 W. If the probe surface has an emissivity of 0.8, what is its surface temperature in outer space? State your assumptions in the calculations.Show that the rate of heat conduction per unit length through a long, hollow cylinder of inner radius ri and outer radius ro, made of a material whose thermal conductivity varies linearly with temperature, is given by qkL=TiTo(rori)/kmA where Ti = temperature at the inner surface To = temperature at the outer surface A=2(rori)/ln(ro/ri)km=ko[1+k(Ti+To)/2]L=lenthofcyclinder
- 1.19 A cryogenic fluid is stored in a 0.3-m-diameter spherical container is still air. If the convection heat transfer coefficient between the outer surface of the container and the air is 6.8 , the temperature of the air is 27°C, and the temperature of the surface of the sphere is –183°C, determine the rate of heat transfer by convection.A high-speed computer is located in a temperature-controlled room at 26C. When the machine is operating, its internal heat generation rate is estimated to be 800 W. The external surface temperature of the computer is to be maintained below 85C. The heat transfer coefficient for the surface of the computer is estimated to be 10W/m2K. What surface area would be necessary to assure safe operation of this machine? Comment on ways to reduce this area.A 1.69 m wide by 1.06 m high metal plate must be insulated to prevent contact burn injuries. If the heat transfer rate is 131 W and the temperature across the insulation must be reduced from 87.9°C to 40.2°C, what is the minimum thickness (in cm) of insulation required [round your final answer to two decimal places]? {kins = 0.033 W/m∙K}
- The thermal conductivity of a fluid is 0.09 BTU/ft-h-F having a kinematic viscosity of 0.0215 ft2/h. If the density and specific heat at constant pressure are 53.0 lbm/ft3 and 0.430 BTU/lb-F, respectively, determine the Prandtl number.The rate of heat transferred between air and condensing refrigerant in a condenser is 70 kW. The condenser has an air-side area of 210 m2 and a U value based on this area of 0.037 kW/m2 -oC. It is supplied with 6.6 m3/s of air which has a density of 1.15 kgm/m3. If the condensing temperature is 55 oC, Determine the temperature of inlet air. (for decimal places for final answer)A 3-meter - long steel pipe has its upper end leaning against a vertical wall and lower end on a level ground. The lower end moves away at a constant rate of 2 cm/s. How fast is the pipe rotating when the lower end is 2 meters from the wall in rad/sec?0.009840.008940.004890.00725
- The roof of an electrically heated home is 6 m long, 8 m wide, and 0.25 m thick, and is made of a flat layer of concrete whose thermal conductivity is k =0.8 W/m · °C. The temperatures of the inner and the outer sur- faces of the roof one night are measured to be 20 °C and 4 °C, respectively. Determine the rate of heat loss through the roof that night. Round the answer to 2 decimal places.A fan forces air over a computer circuit board with an area of 0.01 m2 to keep the circuit board cool. If the temperature of the surface is at 350 K and the incoming air is at 298 K, determine the rate of heat transfer in W. Assume the heat transfer coefficient is 20 W/(m2K). Report your answer to one decimal place.The thermal conductivity of a fluid is 0.09 BTU/ft-h-F having a kinematic viscosity of 0.0215 ft2/h. If the density and specific heat at constant pressure are 53 lbm/ft3 and 0.43 BTU/lb-F, respectively, determine the Prandtl number. Correct Answer: 5.44 ± 0.1