Task 31253.
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- Physics
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- 17.05.2015 17:33:15
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- Юрий Физик · about the seller and their products
DESCRIPTION
Task 31253.
Electric range with 1 kW Nichrome spiral is designed to supply power to the voltage of 220 V. How many meters of wire 0.5 mm in diameter must be taken for the manufacture of spiral thread if the temperature is 900 ° C? The resistivity of nichrome at 0 ° C 1 mO • m, and the temperature coefficient of resistance of 0.4 x 10^-3 K^-1.
Additional information:
Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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