
Eletricidade e Circuitos
Physics
12th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a resistência equivalente de dois resistores de 4 Ω e 6 Ω conectados em série?
2 Ω
10 Ω
24 Ω
1.5 Ω
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a resistência equivalente de dois resistores de 4 Ω e 6 Ω conectados em paralelo?
2.4 Ω
10 Ω
24 Ω
1.5 Ω
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula para calcular a potência elétrica dissipada em um resistor?
Todas as anteriores
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
De acordo com a 1ª lei de Ohm, qual é a relação entre tensão (V), corrente (I) e resistência (R)?
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Em um circuito simples com uma fonte de tensão de 12 V e um resistor de 3 Ω, qual é a corrente que passa pelo resistor?
4 A
3 A
6 A
2 A
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a resistência equivalente de três resistores de 2 Ω, 3 Ω e 6 Ω conectados em série?
1 Ω
11 Ω
6 Ω
2 Ω
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a resistência equivalente de três resistores de 2 Ω, 3 Ω e 6 Ω conectados em paralelo?
1 Ω
11 Ω
1.09 Ω
2 Ω
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