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Physics, 21.11.2020 22:10 lovelife132015

El foco de un automóvil, previsto para operar con una batería de 12 V, es de 40 W. a) ¿Qué resistencia eléctrica tiene su filamento cuando está encendido? b) ¿Tendrá el mismo valor cuando está apagado?

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El foco de un automóvil, previsto para operar con una batería de 12 V, es de 40 W. a) ¿Qué resistenc...
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