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Thread: Superposition - Urgent

  1. 16th September 2009 07:19 AM #1
    Micheal
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    Default Superposition - Urgent

    Hi All,

    Please help out on this.

    I manage to get Vx = 28V and Vy = 9V.

    Please check whether correct or not.

    Thanks & Best Regards,
    Micheal
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  2. 16th September 2009 09:06 AM #2
    Mikebits
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    Perhaps you could provide the question that goes with your homework problem.
    Pay it forward.
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  3. 16th September 2009 09:26 AM #3
    Ross Craney
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    That is a bit like saying -
    " I have five bananas can you help me with the answer "
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  4. 16th September 2009 10:47 AM #4
    Micheal
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    Hi All,

    Sorry for miss out the question:

    The question is asking to get the Vx & Vy Voltage value by using the Superposition theorem.

    For the solution:
    I have tried to short each of the voltage source for this calculation.

    By the time I want to short the voltage source on the left, wonder how is the current flow is? Is it the same when we short the voltage source on the right?

    Btw, the answer I got is Vx = 28V and Vy = 9V.

    Please guide and check whether the answer is correct.

    Thanks & Best Regards,
    Micheal
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  5. 16th September 2009 12:07 PM #5
    birdman0_o
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    Perhaps you should give us a current. It is impossible to find out the voltages just with resistance.
    Mike
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  6. 16th September 2009 04:51 PM #6
    Micheal
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    Oops.... Miss out the below details. Sorry...

    Given V0 = 8V and the power dissipated across resistor 4 Ohm is 100 W

    Find the Vx and Vy?

    Thanks
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  7. 16th September 2009 05:26 PM #7
    BrownOut
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    If 100W in 4 ohms, then V(4ohms) = (100 * 4)^1/2

    Then using mesh on left: Vx = 8V + V(4ohms)

    Now, substituedthis into the equation from superposition, and you have Vy.
    Last edited by BrownOut; 17th September 2009 at 03:38 AM.
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  8. 22nd September 2009 04:58 AM #8
    Micheal
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    Thanks All for the help
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