
Práctica calificada electrodinámica
Authored by MARYY SALCEDO
Physics
12th Grade
Used 4+ times

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5 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Durante 5 minutos está circulando una corriente eléctrica por un conductor metálico con una intensidad de 2 A.
¿Qué carga eléctrica ha atravesado la sección del conductor?
600 C
600 mC
6 C
60 cC
2.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Un conductor eléctrico de Aluminio presenta una resistencia al paso de la corriente eléctrica de 35 Ω.
Si el conductor tiene forma circular de radio 0,25 cm. Determinar la longitud del conductor metálico.
DATO:ϼ del Aluminio = 2,8x10-8 Ω·m)
.
23,75 m
23,75 cm
23750 m
23750 cm
3.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Calcula la resistencia eléctrica de un alambre conductor si sabemos que circula una intensidad de corriente de 2,5 A cuando se aplica a sus extremos un voltaje de 125 V
30 Ω
40 Ω
50 Ω
60 Ω
4.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
Tres resistencias de 9, 18 y 30 ohmios se conectan en paralelo a una tensión de 90 V. Calcula la intensidad total el circuito.
10 A
18 A
5 A
3A
5.
MULTIPLE CHOICE QUESTION
10 mins • 4 pts
En el siguiente circuito con resistencias en serie y en paralelo calcular: La resistencia equivalente del circuito y la intensidad total del circuito.
12 Ω y 14 A
4 Ω y 13 A
14 Ω y 12 A
12 Ω y 13 A
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