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Physics
choose the correct statement.
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Q. choose the correct statement.
BHU
BHU 2010
Electromagnetic Induction
A
When we heat a semiconductor its resistance increases
18%
B
When we heat a semiconductor its resistance decreases
41%
C
When we cool a semiconductor to 0 K then it becomes superconductor
14%
D
Resistance of a semiconductor is independent of temperature
27%
Solution:
With rise in temperature, conductivity of semiconductor increases while resistance decreases.