subject
Engineering, 06.10.2019 09:02 ariana0517

A3-mm-diameter electrical wire is insulated by a 2-mm-thick rubberized sheath (k = 0.13 w/m ⋅ k), and the wire/sheath interface is characterized by a thermal contact resistance of rt ,c 3 10 m k/w ′′ = × −4 2 ⋅ . the convection heat transfer coefficient at the outer surface of the sheath is 15 w/m2 ⋅ k, and the temperature of the ambient air is 20°c. if the temperature of the insulation may not exceed 50°c, what is the maximum allowable electrical power that may be dissipated per unit length of the conductor? what is the critical radius of the insulation?

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.
Answers: 2
question
Engineering, 04.07.2019 18:10
Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise
Answers: 3
question
Engineering, 04.07.2019 18:10
Afluid flows with a velocity field given by v=(x/t)i.. determine the local and convective accelerations when x=3 and t=1.
Answers: 2
question
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
You know the right answer?
A3-mm-diameter electrical wire is insulated by a 2-mm-thick rubberized sheath (k = 0.13 w/m ⋅ k), an...
Questions
question
English, 01.12.2020 18:40
question
Mathematics, 01.12.2020 18:40
question
Mathematics, 01.12.2020 18:40
question
Mathematics, 01.12.2020 18:40
Questions on the website: 13722360