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On the base of the incandescent bulb with tungsten filament it is written: 120 V; 60 watts. When measuring the resistance of this light bulb in a cold state on the Whitson bridge, it turned out that it is only 20 Ohms. Find the normal temperature t of the filament filament, if the temperature coefficient of resistance of tungsten is α= 5 * 10⁻³ 1/°С.
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- Added to the site 21.12.2023
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Lag1989 problem number 15.7
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Timur_ed
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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