Recent content by jasum

  1. J

    Books recommendation on electrodynamics

    Thank you very much for your advices. I will try these books on.Thanks!
  2. J

    Books recommendation on electrodynamics

    I just finished Griffths intro. to electrodynamics and works half of the problems Griffths provided. Now,I attempt to read Jackson's electrodynamics and found it is very hard for me... Indeed, should I need to go back to Griffths's electrodynamics and learn those concepts again? or I should try...
  3. J

    Why is the conduction band lowered in Schottky diodes?

    Here is my question in the formation of Schottky Diode: "Why does conduction band is lower than the original value in the semiconductor side?" And I think it is lower because the postitve charged donor ions provide a attractive force ,which makes the electrons in semiconductor more easy to...
  4. J

    Basic Electronics: NPN Junction Explained

    http://hyperphysics.phy-astr.gsu.edu/hbase/electronic/npnce.html#c3 Here is the explanation of npn junction in hyperphysics 1,what important to add the cap. inside the input and output circuit? 2,what difference after I select the remove the bypass cap. in the website? 3,what is the...
  5. J

    Search of high impact factor journal

    it seems a silly question. how to figure out the most important journal in this field? can I serch by the impact factor?how can I use it? I am a beginner in this branch, and I am confused in how to find out the important artical which imapct this field a lot.
  6. J

    How Do You Solve E&M Problem 2 on Spinning Spherical Shell?

    In fact, This is a question I caucalated in HW. But I still dun understand the answer. Any have the idea about this question? The problem is in this link http://web.mit.edu/8.07/www/probsets/PS6s.pdf The problem No.2
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