5. Electric stove 1 kW with Nichrome spiral is intended

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Uploaded: 28.07.2015
Content: fiz045_05.doc (36,5 kB)

Description

5. Electric stove 1 kW with Nichrome spiral is intended for inclusion in the network with a 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 nichrome at 0 ° C ρ0 = 1 mO • m, and temperature coefficient of resistance α = 0,4 • 10-3 K-1.

Additional information

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)

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