
Isolantes Elétricos
Authored by GERSON LUIS GONCALVES
Physics
12th Grade
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a unidade de medida da resistividade elétrica no Sistema Internacional de Unidades (SI)?
Ohm
Ohm-metro
Siemens
Volt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos seguintes materiais é considerado um bom isolante elétrico?
Cobre
Alumínio
Vidro
Ouro
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A resistividade de um material depende de qual dos seguintes fatores?
Temperatura
Cor do material
Forma do material
Peso do material
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a principal função de um material dielétrico em um capacitor?
Conduzir eletricidade
Armazenar energia elétrica
Aumentar a resistência
Reduzir a corrente
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a constante dielétrica do vácuo?
1
8.85
0
3.14
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual dos seguintes materiais tem uma alta constante dielétrica?
Ar
Água
Madeira
Borracha
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a principal característica de um isolante em alta tensão?
Alta condutividade
Alta resistividade
Baixa resistência
Alta densidade
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