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An Intiative by Sri Chaitanya
a
Number density of free current charge carriers increases.
b
Relaxation time increases.
c
Both number density of carriers and relaxation time increases but effect of increase in relaxation time is much less than increase in number density.
d
Number density of carriers increases, relaxation time decreases but effect of decrease in relaxation time is much less than increase in number density.
answer is D.
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