
TEMA 6 COMPONENTES ELECTRÓNICOS ACTIVOS.
Authored by Antonio Jiménez
Science
3rd Grade
Used 1+ times

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un diodo está formado por:
Base, emisor, colector.
Fase, neutro.
Ánodo, cátodo.
Base, neutro.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un diodo en polarización inversa:
No deja pasar la corriente.
Deja pasar la corriente.
Deja pasar la corriente si se polariza su base.
Solamente deja pasar la corriente en semiciclos positivos.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Si u led tiene una tensión de umbral de 1.7V significa que:
No debe superarse esa tensión.
Siempre debe de superarse para que se encienda.
En función de si se supera o no, se encenderá de un color o de otro.
Es la tensión máxima de debe tener el circuito en el que se instale.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
La resistencia de polarización de un led sirve para:
Poder poner en serie diodos led entre si.
Aumentar la potencia del circuito.
Elevar la tensión que llega a los terminales del Led.
Limitar la tensión que llega a los terminales del Led.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un fotodiodo es:
Un diodo de colores.
Un diodo que permite el paso de la corriente en función de la luz que recibe.
Un diodo que emite y recibe luz dependiendo de cómo sea polarizado.
No existe este tipo de componentes.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un transitor consta de:
Fase y neutro.
Ánodo y cátodo.
Cátodo y puerta.
Base, emisor y colector.
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
La ganancia de un transistor:
Se expresa en faradios.
No tiene unidades.
Es la relación entre la corriente de colector y la de la base.
Se denomina hFE
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