Lei de Ohm
Authored by José Luna
Physics
Professional Development
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5 questions
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1.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Uma corrente de 0,5A passa num resistor de 20 ohms. Qual a tensão nesse resistor? (responder apenas o número)
(a)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Considere um resistor de 100R alimentado por uma tensão de 10V. Calcule a corrente que o atravessa e a potência dissipada pelo resistor:
I = 10/100 = 0,1 A
P = 10/0,1 = 10W
I = 100/10 = 10 A
P = 10/10 = 1W
I = 10x100 = 1000 A
P = 10x1000 = 10000W
I = 10/100 = 0,1 A
P = 10x0,1 = 1W
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual a corrente que circula no circuito ao lado?
5A
2A
0,2A
0,5A
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual será a potência dissipada pelo resistor?
I = 6/30 = 0,2 A
12W
6W
1,2W
0,6W
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Qual a resistência equivalente em kiloohms? (preencher somente os números)
(a)
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