
Potência Elétrica A
Authored by JOHNNI PADILHA
Physics
3rd Grade
Used 8+ times

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8 questions
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1.
MATCH QUESTION
3 mins • 1 pt
Combine cada grandeza com sua respectiva unidade de medida.
ampere (A)
Resistência
ohm (Ω)
Tensão (ddp)
joule (J)
Potência
watt (W)
Corrente Elétrica
volt (V)
Energia
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Qual é a unidade de medida de potência elétrica?
ohm (Ω)
watt (W)
volt (V)
ampere (A)
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Um aparelho de 1000 W ligado por 1 hora consome:
1 kWh
10 kWh
0,1 kWh
100 kWh
4.
DRAG AND DROP QUESTION
5 mins • 1 pt
A potência elétrica consumida por um resistor pode ser calculada através das seguintes equações:
(a) ; (b) ; (c)
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Se um aparelho de 2000 W fica ligado por 5 horas, qual o consumo de energia em quilowatt-hora (kWh)?
2 kWh
5 kWh
7 kWh
10 kWh
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Um aparelho de potência 0,5 kW opera durante 8 horas. Qual o custo da utilização deste aparelho, sabendo que o custo de 1 kWh é R$ 0,60.
R$ 8,00
R$ 2,40
R$ 24,00
R$ 4,00
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Um chuveiro elétrico de 6600 W está conectado a uma tensão de 220 V. Qual a corrente elétrica que passa pelo chuveiro?
25 A
30 A
3 A
0,33 A
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