# need help with power diodes questions

Discussion in 'Homework Help' started by minh tú nguyễn, Oct 12, 2016.

Oct 12, 2016
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2. ### WBahn Moderator

Mar 31, 2012
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Even if someone was of a mind to do your homework for you they couldn't since there is no question 5 to be found in any of those problems (in the image on flickr, the two images you tried to link are bad links -- might require someone to login to some third party site).

3. ### minh tú nguyễn Thread Starter New Member

Oct 12, 2016
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http://imgur.com/jHsD9Rb hi i tried to post it in this site. Hope it can fix the problem. And I tried my best to do it even after reading the book, I just couldnt

4. ### minh tú nguyễn Thread Starter New Member

Oct 12, 2016
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For Question 5 Problem 4 since diode 1 is forward biased in parallel with diode 2 which is reversed biased. I think there is no resistance between this 2 parallel diodes so to get Current I, my thought is I would just Use Vs divide by R to get Current I as I = Vs/R = 10/10= 1A. Since Diode 2 is reversed biased its current will be 0 and diode 1 will have 1A

5. ### WBahn Moderator

Mar 31, 2012
24,560
7,700
There is NO question 5 in that image!

Problem 4 has four questions. Problem 5 has one. Problem 6 has three.

6. ### WBahn Moderator

Mar 31, 2012
24,560
7,700
That is correct (assuming you are treating the diodes as ideal, which it sounds like you are and that that is what the problem is assuming you will do).

Though I still don't see any Question 5 associated with that problem.

7. ### Dennis Ramlal New Member

Oct 12, 2016
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Im so sorry. What i was referring to was question 4 of problem 4. And also Im stuck at how to get the waveform for problem 5 and question 1 of problem 6. For question 2 I used Root 2 multiply with 50=70.7V to get Vmax and PIV, is it correct?

8. ### Dennis Ramlal New Member

Oct 12, 2016
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Sorry I used my phone so it got signed on in different account but it's still me the one who post the thread

9. ### minh tú nguyễn Thread Starter New Member

Oct 12, 2016
5
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Im so sorry. What i was referring to was question 4 of problem 4. And also Im stuck at how to get the waveform for problem 5 and question 1 of problem 6. For question 2 I used Root 2 multiply with 50=70.7V to get Vmax and PIV, is it correct? Sorry I used my phone so it got signed on in different account but it's still me the one who post the thread

10. ### JoeJester AAC Fanatic!

Apr 26, 2005
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Here is a cropped version.