Diode any help?

Discussion in 'Homework Help' started by ENG99, Sep 1, 2015.

  1. ENG99

    Thread Starter Member

    Feb 13, 2014
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    i had work with this assignment several times but I'm not sure if my answer is correct or no. Can u plz check it.
    I have attached it image.jpg

    Thanks
     
  2. DerStrom8

    Well-Known Member

    Feb 20, 2011
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    Where is the question?
     
  3. ENG99

    Thread Starter Member

    Feb 13, 2014
    37
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    The question says:
    Find D1 and D2
     
  4. DerStrom8

    Well-Known Member

    Feb 20, 2011
    2,428
    1,328
    I found them. I circled them in red:

    image.jpg


    Seriously though, "Find D1 and D2" is not a question. What aspects of D1 and D2? D1 and D2 are just diodes. Do you want the current flowing through them? Power dissipated? There are many measurements that can be taken of D1 and D2. Asking to "find D1 and D2" is not a complete question.
     
    Dr.killjoy and Jony130 like this.
  5. Jony130

    AAC Fanatic!

    Feb 17, 2009
    3,957
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    And your answer is ??
    And how can Vx = 0V if you assumed that both diodes are ON and notice that D2 cathode is at 2V.
     
  6. ENG99

    Thread Starter Member

    Feb 13, 2014
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    0
    Yes I meant the current flowing through d1 and d2
     
  7. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    What are you assuming that the forward conduction voltage drop (Vf) of your diodes is?
     
  8. WBahn

    Moderator

    Mar 31, 2012
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    What do you mean when you say, "Vx=0 for short circuit"?

    You indicate that Vx is the voltage at the node at the bottom of the 1 kΩ diode. Why would the voltage there ever be 0 V?

    What model are you using for your diodes?

    Saying, "I1 = 1" is fundamentally incorrect. '1' is a number, it is not a current. You have a current of '1 mA', so you need to say that "I1 = 1 mA"

    Track your units -- the payoff is huge.
     
  9. Dr.killjoy

    Well-Known Member

    Apr 28, 2013
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    You just made my day lol


    Thanks
    Jay Sr
     
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