Mute
ELETRICITY - O CANAL
A corrente de um equipamento não pode ser simplesmente obtida dividindo a potência em watts pela tensão. Parece estranho? Então acompanhe o teste no vídeo. Medimos a potência e a tensão de um micro-ondas com o Alicate Wattímetro DT-3349W-BT da HEPTA Instrumentos e conferimos os cálculos. Na função wattímetro, registramos 1477 W. Na função tensão, encontramos 122,9 V, Se dividirmos 1477 por 122,9, chegamos a 12,02 A. Mas ao mudar para a função amperímetro, o valor real é 13,71 A — maior do que o...
Follow
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