An electric current passes through a metal strip 0.59 cm by 4.2 cm by 0.17 mm , heating it at the rate of 43 W . The strip has emissivity e=1.0and its surroundings are at 250 K . What will be the temperature of the strip if it's enclosed in (a) a vacuum bottle transparent to all radiation and (b) an insulating box with thermal resistance R = 8.9 K/W that blocks all radiation?

An electric current passes through a metal strip 0.59 cm by 4.2 cm by 0.17 mm...
An electric current passes through a metal strip 0.40 cm by 5.9 cm by 0.14 mm, heating it at the rate of 52 W. The strip has emissivity e = 1.0 and its surroundings are at 340 K. What will be the temperature of the strip if it's enclosed in (a) a vacuum bottle transparent to all radiation and (b) an insulating box with thermal resistance R = 7.5 K/W that blocks all radiation? Express your answer using two significant...
This is for the subject of Heat Transfer. Any clues on how to
solve this would be greatly appreciated thanks
2 [ABET]) An electric cable of radius ri andTaur thermal conductivity ke is enclosed by an insulating sleeve whose outer surface is of radius r2 and experiences convection heat transfer and radiation exchange with the adjoining air and large surroundings, respectively. When electric current passes through the cable, thermal energy is generated within the cable at a volumetric rate q....
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...