Suppose We Increase the Absolute Temperature of a Semiconductor From 200

Multiple Choice

Suppose we increase the absolute temperature of a semiconductor from $200 \mathrm{~K}$ to $300 \mathrm{~K}$ . By roughly what factor does this make the semiconductor more conductive? (Hint: How much more likely is it for a conduction band energy level to be occupied by an electron?)

A) 1.5 times
B) 3 times
C) 4.5 times
D) 20 times
E) One cannot tell with the information given.