
Transistores e Semicondutores
Interactive Video
•
Physics, Science, Computers
•
9th - 12th Grade
•
Hard

Ethan Morris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é uma das principais funções de um transistor?
Converter energia solar
Armazenar dados
Gerar eletricidade
Controlar circuitos
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Por que transistores de alta potência têm uma caixa metálica?
Para melhorar a estética
Para reduzir o tamanho
Para ajudar a remover o calor
Para aumentar a voltagem
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o papel do emissor em um transistor?
Controlar a temperatura
Emitir luz
Fornecer elétrons
Armazenar energia
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que acontece quando aplicamos 0.7 volts ao pino de base de um transistor?
O transistor permanece desligado
O LED apaga
O transistor se liga completamente
A corrente para de fluir
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Como um transistor pode amplificar um sinal?
Aumentando a resistência
Usando uma pequena voltagem para controlar uma maior
Alterando a frequência
Reduzindo a corrente
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a diferença principal entre transistores NPN e PNP?
A cor do material
A quantidade de pinos
A direção do fluxo de corrente
O tamanho físico
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que representa a seta no símbolo de um transistor?
A direção do fluxo de corrente convencional
A direção do fluxo de elétrons
A voltagem máxima suportada
A polaridade do transistor
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