
Quiz sobre Circuitos Elétricos e LEDs
Authored by MIDERSON SANTANA
Other
11th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é a função principal de um LED em um circuito elétrico simples?
Armazenar energia
Emitir luz quando percorrido por corrente elétrica
Reduzir a tensão do circuito
Aumentar a resistência do circuito
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
O que são jumpers em um circuito elétrico?
Dispositivos que armazenam energia
Fios ou conectores usados para fazer ligações entre pontos do circuito
Resistores variáveis
Fontes de alimentação
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Ao conectar duas baterias de 9V em série, qual será a tensão total disponível para o circuito?
4,5V
9V
18V
27V
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual das opções abaixo NÃO é um tipo comum de LED?
LED infravermelho
LED RGB
LED de filamento
LED de mercúrio
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Por que é importante utilizar resistores em série com LEDs em circuitos simples?
Para aumentar a corrente elétrica
Para proteger o LED contra correntes excessivas
Para diminuir a tensão da fonte
Para armazenar energia
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é a unidade de medida da corrente elétrica?
Volts
Ohms
Amperes
Watts
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