
EXAMEN DE ELECTRICIDAD
Authored by Kranford Castillo
Computers, Physics
12th Grade
Used 80+ times

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30 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Si queremos medir la intensidad que pasa por un circuito, ¿Como conectaremos el amperímetro en el circuito?:
En serie.
En paralelo.
En mixto.
Es indiferente, con tal que mida el paso de electrones.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál de estas fórmulas es la ley de OHM?:
V = R / I
R = V x I
I = V / R
R = I / V
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
En un circuito de dos resistencias en paralelo, la R total es:
Rt = (R1+R2) / (R1xR2)
Rt = (R1xR2) / (R1R2)
Rt = (1/R1) + (1/R2)
Rt = (R1xR2) / (R1+R2)
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
En un circuito de resistencias en serie, la Resistencia Total es:
Rt = R1 x R2 x R3
1/Rt = 1/R1 + 1/R2 + ...
Rt = R1 + R2 + R3 +...
Rt = R1 + R2 + R3 x n
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
¿Cuál del las tres leyes es para un circuito serie de Resistencias?:
La tensión es la misma en todos los puntos.
La resistencia total es igual a la resta de parciales.
La Intensidad es igual para todas.
La intensidad se calcula por KIRCHHOFF.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
En un circuito paralelo de resistencias, se cumple que:
La suma de corrientes parciales no es igual a la total.
La suma de tensiones parciales es igual a la total.
La potencia disipada es la misma en cada elemento.
La tensión es igual en todas las resistencias.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La potencia que disipa una resistencia es:
P = V / I
P = I x I/R
P = V x I
P = V x V / I
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