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Hi everyoneim big ben

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  1. Apr 3, 2015 #1
    hi there..i have a question...back at my work, we have a power supply which have a variable current and a variable voltage...my senior said, he have a ic board to check, and then he uses a 5 volt supply with unknown current on it to power up this board,
    he then claims that you can supply the board with any high current as long as the voltage is still 5V...is that possible?..he then says an analogy with
    a car supply..suppose that the car battery has 12v 40A..and you put your car stereo only..he then says that the car stereo wont eat up the whole 40A..
    and then he says that its the same in semiconductors...
    please help me guys to understand further..
     
  2. jcsd
  3. Apr 3, 2015 #2
    Welcome to PF, please post your question in the appropriate forum.
     
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