vol 3 chap 4/13

Discussion in 'Feedback and Suggestions' started by va-sawyer, Aug 11, 2014.

  1. va-sawyer

    Thread Starter New Member

    Aug 11, 2014
    3
    0
    I am confused by the math.....
    26 mV/1mA = .26 ohm. On the next line it says R= re times Beta.
    If Beta is 100 then shouldn't R=26 ohms, and not 2600?

    I went back and read it again..... I think the first equation is in error... it should be 26 ohms and not 0.26 ohms.
     
    Last edited: Aug 11, 2014
  2. Ramussons

    Active Member

    May 3, 2013
    557
    92
    Vol 3 Chap 4/13 of which book ? I don't know. :D

    But 26 mV / 1 mA = 26 Ω. That I'm certain ;)

    Ramesh
     
  3. va-sawyer

    Thread Starter New Member

    Aug 11, 2014
    3
    0
    I'm refering to the E-Book on this site. They have two equations. The first shows 26mV/1mA = 0.26 ohm. The second one multiplies that result by Beta (100), and gets 2600 ohms as the final answer. It was very late at night, and I was reading it on my phone, but I still knew that 0.26 X 100 did NOT equal 2600.
    So, Volume 3 - Semiconductors, Chapter 4 BJTs, Section 13 Impedance Matching.
     
  4. Ramussons

    Active Member

    May 3, 2013
    557
    92
    The first equation has a Printers's Devil. It should be 26 Ω.

    Ramesh
     
  5. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    Error confirmed. Thank you very much for reporting it!
     
  6. Dcrunkilton

    E-book Co-ordinator

    Jul 31, 2004
    416
    11
    Thanks va-sawyer, and all,

    Thanks for finding this error.

    Your corrections have been entered at ibiblio.org

    Dennis Crunkilton
     
Loading...