aproach to exercise

Discussion in 'Homework Help' started by yiannistamv, Aug 1, 2014.

  1. yiannistamv

    Thread Starter Member

    Jul 23, 2014
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    can someone tell me if this aproach is right thank you
     
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  2. Jony130

    AAC Fanatic!

    Feb 17, 2009
    3,957
    1,097
    Notice that 10V voltage source is in parallel with V3.
    Also 12V + 10V is in parallel with V2.
    Next use ohms law to find V1.
    V1 = 24V - ?? = ??
     
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  3. yiannistamv

    Thread Starter Member

    Jul 23, 2014
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    thank you a lot for your time but please tell me you disagree with my aproach of course the fact that 10 v and 12v is parallel with v2 i did not see it allthough i came to same result. In any case you think that my aproach is incorrect to apply the kvl to 12v v3 and v2 and then to 24v v1 and v2 thanks a lot for you help
     
  4. MrAl

    Well-Known Member

    Jun 17, 2014
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    Hi,

    All three voltages can be found without resorting to anything except added or subtracting VOLTAGES. No need for Ohm's Law here :)
    Note that the node voltages would not change if any or all three resistor values were changed a little.

    If you still have trouble, try first labeling the nodes with their respective voltages relative to say the bottom node on the far left, then try to solve for the required voltages.
     
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  5. yiannistamv

    Thread Starter Member

    Jul 23, 2014
    35
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    yes thank you for your comment the only think that it will change is current i diid not see that too thank you
     
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