Electrònica analògica
Quiz
•
Instructional Technology
•
9th - 10th Grade
•
Practice Problem
•
Medium
Joan F.
Used 24+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una resistència es un component passiu que:
emmagatzema una petita càrrega d'energia elèctrica.
augmenta la tensió total.
ofereix una oposició al pas de corrent elèctric.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Què significa el color de la quarta línia de color d'una resistència?
1a xifra
Tolerància
2a xifra
Multiplicador
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Les resistències estàn compostes d'una hèlix de:
Silici en estat pur
Carbó
Coure
Ceràmica
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un potenciòmetre serveix per a:
graduar manualment la resistència
variar la resistència en funció de la llum
variar la resistència en funció de la temperatura
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un resistor LDR varia el seu valor de resistència amb la:
Llum
Temperatura
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quin termistor augmenta la seva resistència en augmentar la temperatura?
NTC
PTC
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un condensador es un component electrònic que:
impedeix el pas de corrent en un sentit
crea un camp magnètic en circular corrent
te tres potes anomenades col·lector, emissor i base
emmagatzema temporalment petites càrregues
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