ATIVIDADE DE RECUPERAÇÃO 3 ANO
Autor: MILENIUM | Publicado: 2012-12-08T11:00:00-08:00

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Verificação de Aprendizagem FÍSICA
&nbsp;NOTA: ________

RECUPERAÇÃO – Prof. Everaldo



Nome:
___________________________________________ n° ______ 3 A



 

  
  
Esta atividade de recuperação
  tem por objetivo o resgate dos conteúdos tratados em sala e desenvolvido com
  atividades diversas. Você poderá consultar seu material de registro e é
  permitido o uso de calculadora. As questões devem ser justificadas com os
  devidos cálculos.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
  Boa Prova.

 




01)
&nbsp;Em um circuito alimentado por um
gerador que fornece ao sistema 60V estão associados dois resistores R1 = 2,0 e
R2 = 3,0 ohms. Para esse sistema, determine:



a)&nbsp;&nbsp;&nbsp;
A resistência equivalente do circuito;

b)&nbsp;&nbsp;&nbsp;
A intensidade de corrente i no circuito;

c)&nbsp;&nbsp;&nbsp;
Qual a ddp (U) estabelecida no resistor de 2,0 Ω;

d)&nbsp;&nbsp;&nbsp;
Qual a ddp (U) estabelecida no resistor de 3,0 Ω;

e)&nbsp;&nbsp;&nbsp;
Qual a potência gerada por esse gerador;

f)&nbsp;&nbsp;&nbsp;&nbsp;
Qual a potência dissipada no resistor 2,0 Ω;

g)&nbsp;&nbsp;&nbsp;
Qual a potência dissipada no resistor 3,0 Ω.



02)
&nbsp;Têm-se três resistores R1 = 4,0,
R2 = 6,0 e R3 = 12 ohms, associados em paralelo, determine:



a)&nbsp;&nbsp;&nbsp;
A resistência equivalente para essa associação;

b)&nbsp;&nbsp;&nbsp;
Determine a tensão estabelecida em cada um dos resistores;

c)&nbsp;&nbsp;&nbsp;
Calcule a intensidade de corrente i enviada pelo gerador ao sistema.



03)
&nbsp;Responda V (verdadeiro)ou F
(falso), para as questões abaixo:



a)&nbsp;&nbsp;&nbsp;
(&nbsp;&nbsp;&nbsp; ) Podemos dizer que um
dispositivo que transforma qualquer forma de energia em energia elétrica é um
gerador;

b)&nbsp;&nbsp;&nbsp;
(&nbsp;&nbsp;&nbsp; ) Um dispositivo que
transforma energia elétrica em outras formas de energia é um receptor;