Eval. Sist Elec 3UD.
Quiz
•
Engineering
•
11th Grade
•
Practice Problem
•
Medium
VICTOR MANUEL ANDREU BLAZQUEZ
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
El dispositivo capaz de transformar la onda superior en la inferior se denomina
Rectificador de media onda
Rectificador de doble onda
Rectificador de onda completa
Puente de bobinas
2.
MULTIPLE SELECT QUESTION
45 sec • 2 pts
Un transistor MOSFET y BJT (bipolar) se diferencian en:
BJT es Controlado por corriente;
MOSFET Controlado por voltaje
BJT es más lento que el MOSFET.
En el MOSFET la corriente fluye de base a emisor, sumándose a la corriente de emisor a colector, en el BJT no.
BJT es capaz de amplificar corriente al tener ganancia.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Varia la resistencia de forma mecánica:
Fotorresistor
Resistencia
Potenciómetro
Fotocélula
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A qué tipo de componente se refiere la imagen:
Didodo tiristor
Transistor Mosfet
Transistor NPN
Transistor PNP
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
¿Qué representa la siguiente gráfica?
Es la curva de trabajo del Transistor bipolar
Representa la Curva característica de un Diodo.
En conexión directa poca tensión permite mucho paso de corriente.
Es el ciclo de trabajo de un fototransistor.
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
En la figura, Vf tiene el valor típico. ¿Cuál es el valor de la corriente que fluye por el circuito?
20 mA
2 A
1.5 mA
10 mA
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Teniendo en cuenta que b = base, c = colector y e = emisor. Las zonas de trabajo del transistor bipolar son:
Corte (0 < Vbe < 0.7V)
Saturación (Vce = 0)
Activa (Vbe = 0.7)
Saturación (Vce =0)
Inversa (Vbe = 0)
Directa (Vbe = 0.7)
Activa (0 < Vbe < 0.7V)
Corto (Ic máxima)
Amplificador (Ib*Beta)
Inversa (Vbe máxima)
Corte (Vbe = 0)
Directa (Vbe = 0.7)
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