Electronics Nodal Voltage/current thing

Discussion in 'Modding' started by LAGMonkey, 2 Dec 2004.

  1. LAGMonkey

    LAGMonkey Group 7 error

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    Right ive got a circuit that i need to find the current at a particular node. Problem is that its got a current source and a voltage source and i cant for the life of me remember how the hell to do it. Im going to go off and :search: so hopefully i wont need your kind help. But on the off chance any help would be appreciated.

    ta
     
    LAGMonkey, 2 Dec 2004
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  2. Lynx

    Lynx What's a Dremel?

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    Any chance of seeing the circuit and where you are trying to find the current. Or a rough description?
     
    Lynx, 2 Dec 2004
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  3. LAGMonkey

    LAGMonkey Group 7 error

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    .....-----7 Ohms----N1----(+)[EMF(2v)](-)--N2----7 Ohms-----
    .....|......................|................................|.......................|
    ....(+)....................|................................|.......................|
    ...4Amps.................|................................|.......................|
    .....(-)................10 Ohms.......................9 Ohms.............6 Ohms
    ......|......................|...............................|.......................|
    ......___________________________________N3______________
    ...............|
    ............._____
    ..............___
    ................_

    The Current is flowing from Node 2 to Node 3. and the current at Node3 is what needs to be found out. Please please PLEASE DO NOT tell me the ans i just need a hint on how to work out this problem. I tryed asking my lecturer but i get nothing from him. Im hoping that i just need a fresh explination.
    The other thing is that im quite happy work out a problem with no current source but im just stuck here.

    thanks very much
     
    LAGMonkey, 2 Dec 2004
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  4. cpemma

    cpemma Ecky thump

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    hint hint... Superposition doesn't mean boss man at the sweet factory like I thought... :D
     
    cpemma, 2 Dec 2004
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  5. SteveyG

    SteveyG Electromodder

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    :wallbash: :wallbash:

    Better delete your answer, infernis...
     
    SteveyG, 2 Dec 2004
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  6. LAGMonkey

    LAGMonkey Group 7 error

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    Yea i know its a bit of a contradiction but if i were to say that i think its somthing to do with nodal voltages and kirtchoff's laws would i be on the right track?

    Its part of my University Coursework and i dont want to cheat but ive go abso-f00king no clue.

    PS. im no doing Electronic engineering at uni, im doing Offshoure eng with Marine Tech and weve got to know a little bit about elec to pass the module
     
    LAGMonkey, 2 Dec 2004
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  7. cpemma

    cpemma Ecky thump

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    Spelling Kirchoff right will get more hits ;)

    Googling 'Kirchoff superposition' should home in on the theory side.
     
    cpemma, 3 Dec 2004
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  8. LAGMonkey

    LAGMonkey Group 7 error

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    Brilliant thanks very much. I seriously had no clue how i was going to work this one out and the bod who teaches us isnt exactly....forthcoming.

    :wallbash: lol i knew somthing was up with my spelling

    Thank-you Thank-you Thank-you... etc and so on and so forth.
     
    LAGMonkey, 3 Dec 2004
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