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Podemos afirmar que uma resistência elétrica de 14 \\, \\Omega, constituída por um fio de alumínio com seção transversal reta igual a 10 \\, \\text{mm}^2, possui o comprimento de:

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Conversor A/C.

",{"_43":210,"_81":87,"_83":217},"

Conversor D/A.

",{"_43":219,"_81":91,"_83":220},"b0a43708-2eaa-431e-9f5a-5e670c310b88","

Conversor DC/AC.

",{"_43":222,"_81":95,"_83":223},"621496f0-8bcd-4170-ac79-f029b61cf7c4","

Conversor AC/DC.

",{"_43":225,"_81":99,"_83":226},"82beb153-62b5-4492-a5b4-4b250e984761","

Nenhuma das respostas acima.

","

Para a conversão de sinais digitais para analógicos, necessitamos de circuitos ou chips denominados:

",[229],{"_43":174,"_57":175,"_59":176,"_150":151,"_152":164,"_123":177,"_125":177,"_45":178,"_127":176},{"_40":231,"_42":41,"_43":232,"_77":233,"_101":243,"_102":244,"_51":245},"22d7bbd3-763e-4f0a-b27b-99a913a98b51","b72f32d4-8e5c-4b78-8ca1-fffb9133beaf",[234,236,237,239,241],{"_43":235,"_81":82,"_83":82},"0d271c5e-75f4-4f80-9070-ec6e61f920b4",{"_43":231,"_81":87,"_83":87},{"_43":238,"_81":91,"_83":91},"b0005922-c0f4-41ed-b76f-782d257efeca",{"_43":240,"_81":95,"_83":95},"09ae6274-a5a4-4dd6-b758-fd3d202facb4",{"_43":242,"_81":99,"_83":99},"79575e01-cc80-4c53-8122-bc3a7a15ac9a","Segundo o gabarito oficial divulgado pela CESGRANRIO para o concurso PETROBRAS de 02/05/2010 (Engenheiro de Equipamentos Pleno – Ênfase Eletricidade), a alternativa assinalada como correta na questão 50 é a letra B.","

Qual é a resposta correta para a questão 50 do exame realizado em 02/05/2010 para o cargo de ENGENHEIRO(A) DE EQUIPAMENTOS PLENO ÊNFASE EM ELETRICIDADE, de acordo com a seguinte chave de respostas?

",[229],[229,247,248,249],{"_43":182,"_57":183,"_59":184,"_150":151,"_152":174,"_123":185,"_125":185,"_45":186,"_127":184},{"_43":164,"_57":165,"_59":166,"_150":151,"_152":147,"_123":167,"_125":167,"_45":168,"_127":171},{"_43":147,"_57":148,"_59":149,"_150":151,"_152":-5,"_123":153,"_125":153,"_45":154,"_127":149},"tagsTree",[146],"videoDislikes",{},"videoLikes",{},"actionData","errors"]

Comentários