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Vinil7 [7]
4 years ago
10

¿Cuál será el aumento de temperatura que experimenta una lámpara incandescente con filamento de wolframio (W) o tungsteno (rhow=

0,059 Ωmm2/m y α=0,0005 1/ºC), si al medir su resistencia a temperatura ambiente (20 ºC) es de 195 Ω, habiéndose calculado una resistencia en caliente de 199 Ω? ¿Por qué varía la resistencia de un material al aumentar la temperatura?
Spanish
1 answer:
luda_lava [24]4 years ago
4 0

Answer:

si aumenta la temperatura (casi siempre) aumenta la resistividad.

Explanation:

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