
Corriente alterna
Authored by Sergio P.
Science
1st - 12th Grade
Used 8+ times

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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La potencia aparente se mide en:
VAR
VA
W
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué nombre se le da a la potencia que realmente se transforma en energía útil en el receptor?
Potencia activa
Potencia aparente
Potencia reactiva
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿A qué se debe que un alternador produzca tensión que cambia constantemente de valor y sentido?
Los electrones son empujados a moverse según gira el alternador.
A que los conductores en su giro cortan el campo magnético con diferentes ángulos.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué indica un voltímetro de CC al ser conectado a una red de CA?.
Valor eficaz.
Valor máximo.
Cero.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿De los componentes que a continuación se exponen, cuál de ellos produce un adelanto de 90º a la corriente respecto la tensión?.
Bobina
Condensador
Resistencia.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿De todos los valores que componen una CA senoidal, cuál es el que se utiliza siempre para cálculos y medidas?.
Valor eficaz.
Valor medio.
Valor máximo.
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