Physics, 08.10.2019 04:10, eguilford4438
An electrical current of 700 a flows through a stainless steel cable having a diameter of 5 mm and an electri- cal resistance of 6 × 10−4 ω/m (i. e., per meter of cable length). the cable is in an environment having a tem- perature of 30°c, and the total coefficient associated with convection and radiation between the cable and the environment is approximately 25 w/m2 ⋅ k.
(a) if the cable is bare, what is its surface temperature?
(b) if a very thin coating of electrical insulation is applied to the cable, with a contact resistance of 0.02 m2 k/w, what are the insulation and cable surface temperatures?
(c) there is some concern about the ability of the insulation to withstand elevated temperatures. what thickness of this insulation (k 0.5 w/m k) will yield the lowest value of the maximum insulation temperature? what is the value of the maximum temperature when the thickness is used?
Answers: 1
Physics, 22.06.2019 13:30, adrian1742
In a series circuit the __ is the same at every point
Answers: 2
Physics, 22.06.2019 15:30, ayoismeisalex
What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology
Answers: 2
An electrical current of 700 a flows through a stainless steel cable having a diameter of 5 mm and a...
Chemistry, 08.12.2020 20:50
Mathematics, 08.12.2020 20:50
Mathematics, 08.12.2020 20:50
Health, 08.12.2020 20:50
Mathematics, 08.12.2020 20:50