
LED em Português
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5th Grade
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que significa a sigla LED?
Luz Emitida Diretamente
Diodo Emissor de Luz
Luz Eletrônica Direta
Diodo Eletrônico de Luz
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é o principal componente de um LED?
Resistor
Capacitor
Diodo
Transistor
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a principal função de um LED?
Emitir luz quando uma corrente elétrica passa por ele
Armazenar energia elétrica
Controlar a corrente elétrica
Aumentar a tensão elétrica
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a cor da luz emitida por um LED vermelho?
Azul
Verde
Amarelo
Vermelho
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a unidade de medida da corrente elétrica que passa por um LED?
Volts
Ohms
Amperes
Watts
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a vantagem dos LEDs em relação às lâmpadas incandescentes?
Consomem mais energia
Duram menos tempo
São mais eficientes energeticamente
Produzem mais calor
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a polaridade correta para conectar um LED?
O ânodo ao negativo e o cátodo ao positivo
O cátodo ao negativo e o ânodo ao positivo
Ambos os terminais ao positivo
Ambos os terminais ao negativo
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