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Abhishek kumar compartilhou um post  
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Abhishek kumar compartilhou um post  
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Abhishek kumar compartilhou um post  
4 anos

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Abhishek kumar compartilhou um post  
4 anos

Abhishek kumar compartilhou um post  
4 anos

Abhishek kumar compartilhou um post  
4 anos

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What is a step-up transformer? How does it work?
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What is a step-up transformer? How does it work?