EEL 3394 ELECTRONIC MATERIALS Spring 2006
EXAM I Monday, March 6th, 2006
NAME: SS#: ___________________
GENERAL RULES:
This is a CLOSED BOOK, CLOSED NOTES test.
You are allowed to use a handwritten 8 1/2 x 11" FORMULA SHEET (both sides)
You must turn in your formula sheet with the test
Show ALL YOUR WORK on the test.
For PARTIAL CREDIT you must clearly show ALL INTERMEDIATE STEPS. PLAIN
ANSWERS WILL GET NO CREDIT. Answers have to be stated in appropriate boxes if
applicable.
You MUST include UNITS with your answers for FULL credit.
TOTAL POINTS: 100
GOOD LUCK !!!!!!
Question #1: (12pts)
1) (4 pts) What does the Boltzmann distribution describe?
a) The energy needed to activate a certain thermally activated process.
b) The number of particles at a certain energy at a given temperature.
c) The rate at which a thermally activated process can occur.
2) (4 pts) A thermally activated process occurs at a certain rate at room temperature. If
the temperature is increased the process occurs at
a) an exponentially higher rate.
b) an exponentially lower rate
c) a linearily higher rate
d) the same rate.
3) (4 pts) Draw qualitative Boltzmann
distributions for two pieces of metal, one
at T1 and the other at T2 (T1 is larger than
T2). Label the coordinate axes properly.
