Anonymous asked in Science & MathematicsEngineering · 1 month ago

How do you measure current in this circuit?

I'm building the circuit pictured below..

Attachment image

4 Answers

  • 1 month ago
    Favorite Answer

    Impossible to answer, as I can see a bunch of components but do not know exactly what they are. And the connections, eg, the PC board wires, is unknown also.

    Where do you want to measure current? the circuit has about 30 component pins with probably 50-100 interconnections, each of which has a current. 

    How can you even attempt to build it without the information missing, as noted above.

    • ...Show all comments
    • billrussell42
      Lv 7
      1 month agoReport

      To repeat, current measurement is done by connecting an ammeter in series, essentially replacing one of the wires from the battery with the meter. The mA function of a multimeter would work. 

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  • 1 month ago

    It has a 12v input connector. connect an ammeter in series with the + side of that connector.

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  • GTB
    Lv 7
    1 month ago

    The picture of the component is completely inadequate, making it impossible to answer. We need a circuit diagram

    • Nuff Sed
      Lv 7
      2 weeks agoReport

      We would only need to know WHICH current op is asking about: the total draw, under load, or for some individual component (which is very unlikely).

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  • 1 month ago

    Lower left looks like a socket for a wall wart.  Put an ammeter in series with one of the leads of the wall wart. 

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