A pure germanium plate of area 
and of thickness 
is connected across a battery of potential 
. Find the amount of heat generated in the plate in 
. Given that, the concentration of carriers in germanium at room temperature is 
per cubic metre. The mobilities of electrons and holes are 
and 
, respectively.
Text Solution
Verified by ExpertsA
Conductivity of semiconductor is given by
Since semiconductor is intrinsic
Current flowing, 
where, 
current density 
From Eq. (i), we get
Heat produced, 
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