Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Can Fermi energy be determined by heating and/or cooling a copper wire?   Fermi energy, which is a theoretical concept, has been explored in an
experiment for a copper wire. In this article, scientific validity of this
experiment is discussed. A correct method to determine Fermi energy is also
discussed.

15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat