Recent content by sara39

  1. S

    High Voltage and measurement instruments

    Hi, i've included a picture which might help. HV is applied to an ammeter of about 300ohms input resistance (Rm) and i know that the output resistance of my supply is 10^6 times greater, (well not exactly) adding extra resistances would help give me an exact ratio of 1/10^6. how can i measure...
  2. S

    High Voltage and measurement instruments

    Hi all, Can anybody help me on HVs, high voltages up to 60Kv? Actually I've got this HV supply , then i came across with an old ammeter in my garage which i thought could help in showing me the exact voltage my supply is transferring but i have a poblem in matching the resistances. actually i...
  3. S

    Field and Wave, Electromagnetics & Cheng

    Yes i have done a google search, but unfortunately i have not found anything. Well, can't say anything, the solutions i found are mainly related to the first 6 chapters of the book, which I'm not interested in, anyway thanks for the help!
  4. S

    Field and Wave, Electromagnetics & Cheng

    Field and Wave, Electromagnetics & Cheng! Hi there, i wanted to know if there was an online source of the solutions to the problems of the Field and Wave, Electromagnetic's book of David k. Cheng, especially the solutions to Chaps 7 to 11. Thanx
  5. S

    Programs Which is the utility of a PhD in USA?

    Hi there, Over here in Iran all is just the same, I'm a physic-crazy electrical engineering student, who can not go on studying physics, 'cause I'm defenitely sure i would be jobless for the rest of my life with a degree in Physics. People throw money into industries here and I've got to become...
Back
Top