We perform a thermal conductivity measurement (i.e., we establish a
temperature gradient, and we measure the 
heat flow across the sample), but
instead of the standard zero electrical current condition, we enforce zero
electric field across the sample.
We calculate 
from the
measured heat flow.
(a) Calculate the difference 
in terms of
the usual thermal conductivity ( 
), conductivity ( 
), and
thermopower ( 
).
(b) How big is 
at room temperature for a
typical metal?
Laszlo Mihaly
Thu Oct 31 13:23:11 EST 1996
Cover Page
.