3. A radiant heat lamp is a rod, 0.4 m long and 0.6 cm in diameter,...
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3. A radiant heat lamp is a rod, 0.4 m long and 0.6 cm in diameter, through which 450 W of electric energy is deposited. Assume the surface has an emissivity of 0.92 and neglect incoming radiation. What will the rod surface temperature be? A. 761.24C B. 617.24C C. 671.24C D. 716.24C 3. A radiant heat lamp is a rod, 0.4 m long and 0.6 cm in diameter, through which 450 W of electric energy is deposited. Assume the surface has an emissivity of 0.92 and neglect incoming radiation. What will the rod surface temperature be? A. 761.24C B. 617.24C C. 671.24C D. 716.24C
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