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What is the power of the light bulb, the temperature of the tungsten filament is T = 2650 K? The ratio of the energy luminosity of the thread to the energy luminosity of an absolutely black body at a given temperature is k = 0.31. The area of the radiating surface S = 47mm².
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- Content type File
- Content description 29,52 kB
- Added to the site 31.10.2022
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Lag1989 problem number 23.4
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Timur_ed
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Cumulative discount
| 15 $ | the discount is 20% |
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0.02 $ gift card for a positive review
Timur_ed
1
Cumulative discount
| 15 $ | the discount is 20% |
Check your discount
Amount of purchases from the seller: $
Your discount: %
0.02 $ gift card for a positive review