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An electric current passes through a metal strip 0.60 cm by 6.0 cm by 0.18 mm...

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Physics

An electric current passes through a metal strip 0.60 cm by 6.0cm by 0.18 mm , heating it at the rate of 52 W . The strip hasemissivity e=1.0and its surroundings are at 250 K . Whatwill be the temperature of the strip if it's enclosed in (a) avacuum bottle transparent to all radiation and (b) an insulatingbox with thermal resistance R = 9.0 K/W that blocks allradiation?

(A and B answers should be in K)

Answer & Explanation Solved by verified expert
3.9 Ratings (688 Votes)
given metal strip of dimensions 060 cm 6 cm018 mm 0018 cm here the mode of heat transfer is only the radiation we knwo that the radiation rate of heat    See Answer
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