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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by Ryan Thornwell

  1. R

    Simplifying Boolean expression

    Do I use Demorgan's?
  2. R

    Kirchoff's Laws Series-Parallel Question

    How are I How does I (R4) for instance = 0.239? If its just I = V/R, then I (R4) = 2.298/3.684 = 0.624
  3. R

    Kirchoff's Laws Series-Parallel Question

    I definitely went for the longer approach o_O You've helped my understanding a lot thanks As for the currents of the remaining resistors, they're given right?
  4. R

    Kirchoff's Laws Series-Parallel Question

    Okay so my equivalent resistance should be 3.486? Could you send the file for the sim?
  5. R

    Kirchoff's Laws Series-Parallel Question

    Can't see where I've gone wrong :banghead:
  6. R

    Kirchoff's Laws Series-Parallel Question

    My equivalent circuit is wrong because it gives the wrong current right? You put the current source there because there the current will flow through the node?
  7. R

    Kirchoff's Laws Series-Parallel Question

    So this is the first node right? Also fixed the table and current direction
  8. R

    Kirchoff's Laws Series-Parallel Question

    So here is the circuit, I am trying to figure current and volt drop through resistors. I've got the circuit down to this by combining parallel and series. Also worked out total current. I cannot think where to start with calculating the volt drops, I have this table Would I start by...
  9. R

    Drawing a No Load Phasor Diagram

    In a book by John Bird I found this https://gyazo.com/1aa30c350ddf27e521159eb3b6f0c63c Link to book -...
  10. R

    Drawing a No Load Phasor Diagram

    Hi, I have been given a task to draw a no load phasor diagram to find values of core components of the current. I have been given this information:- - transformer capacity value - delta wired - 3 wire supply value - P voltage - "previous measurements for same size transformer", iron loss...
  11. R

    Help with analogue inverting op amp question

    This is i think is more likely what is expected since the question says to "modify the build". Unfortunately though, I wouldn't know how to do that since nothing you are saying makes any sense to me. Sorry, I'm a bit of a noob, and its probably really easy.
  12. R

    Help with analogue inverting op amp question

    I changed the input to 0.5 seconds to achieve a 1Hz output as you said but I didn't think that was all since the question says to "modify the build". As far as calculations go, all I could manage to put in was working out that 1 sec = 1hz
  13. R

    Help with analogue inverting op amp question

    Hi, The question is - using this circuit which I have built in multisim.. "Modify the existing analogue build to achieve an approx frequency of 1Hz" , "include all calculations" Any help is appreciated. Thanks

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