Revisão eletricidade
Quiz
•
Science
•
University
•
Practice Problem
•
Easy
Luiz Marangoni
Used 3+ times
FREE Resource
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60 questions
Show all answers
1.
MATH RESPONSE QUESTION
2 mins • 1 pt
Determine a o valor de R no circuito
Mathematical Equivalence
ON
2.
OPEN ENDED QUESTION
3 mins • 1 pt
Determine a o valor de Ut e It no circuito
Evaluate responses using AI:
OFF
Answer explanation
Ut = 41 V
It = 11 mA
3.
OPEN ENDED QUESTION
3 mins • 1 pt
Determinar R para que I seja igual a 2,25mA.
Evaluate responses using AI:
OFF
Answer explanation
R=10KOhm
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Determinar a corrente em todos os resistores.
Evaluate responses using AI:
OFF
Answer explanation
I1 = I7 = 0,1A
I3 = I6 = I2 = 0,05A
I4 = I5 = 0,025A
5.
OPEN ENDED QUESTION
5 mins • 1 pt
Três resistores têm resistências elétricas R1 = 20 Ω, R2 = 30 Ω e R3 = 10 Ω e estão associados em série. Aplica-se uma ddp de 120 V nos extremos dessa associação, conforme figura a seguir. Determine:
a) a resistência equivalente da associação.
b) a intensidade de corrente em cada resistor.
c) a tensão em cada resistor
Evaluate responses using AI:
OFF
6.
OPEN ENDED QUESTION
5 mins • 1 pt
três resistores de resistências R1 = 60 Ω, R2 = 30 Ω e R3 = 20 Ω,
estão associados em paralelo, sendo submetidos à ddp de 120 V
Determine:
a) a resistência equivalente da associação.
b) a intensidade de corrente em cada resistor.
c) a tensão em cada resistor
Evaluate responses using AI:
OFF
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Considere duas resistências, R1 = 3 Ω e R2 = 6 Ω, ligadas em série. Aplicamos uma voltagem U = 18 V aos extremos da ligação. Podemos afirmar que:
A resistência equivalente vale 18 Ω
A voltagem em R1 é igual a voltagem em R2.
potência dissipada na associação vale 18 W
R1 e R2 serão percorridas pela mesma corrente de 2,0 A.
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