﻿772 
  Dr. 
  J. 
  Kunz 
  on 
  the 
  Cooyuscular 
  

  

  § 
  3. 
  The 
  Electromotive 
  Force 
  of 
  Ther 
  mo-elements. 
  

  

  Let 
  us 
  combine 
  two 
  metals 
  a 
  and 
  b 
  in 
  a 
  way 
  indicated 
  by 
  

   fig. 
  2. 
  By 
  this 
  arrangement 
  four 
  different 
  differences 
  of 
  

   electric 
  potential 
  will 
  occur, 
  according 
  to 
  the 
  two 
  contacts 
  

  

  Fiff. 
  2. 
  

  

  

  V* 
  

  

  T 
  

  

  

  T 
  

  

  V 
  a 
  

  

  Tv" 
  

  

  a 
  

  

  

  

  

  a 
  

  

  

  

  T' 
  

  

  7> 
  

  

  T 
  

  

  

  f 
  a 
  

  

  

  

  

  

  

  m 
  

  

  I 
  

  

  V 
  

  

  I. 
  and 
  III. 
  at 
  the 
  temperatures 
  T 
  and 
  T', 
  and 
  according 
  to 
  

   the 
  differences 
  of 
  temperature 
  in 
  the 
  two 
  metals 
  a 
  and 
  b. 
  

  

  L. 
  M 
  V 
  a 
  -V 
  B 
  =i-TlogS-% 
  

  

  h 
  ?) 
  e 
  & 
  N„' 
  

  

  ni....v,-v,= 
  i: 
  -riog^, 
  

  

  The 
  thermoelectromotive 
  force 
  E 
  = 
  V 
  a 
  — 
  V 
  flo 
  is 
  therefore 
  

  

  ■H*{™<*-"«4;} 
  

  

  