Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of the Fast Nuclear Electromagnetic Pulse on the Electric Power
  Grid Nationwide: A Different View   This paper primarily considers the potential effects of a single
high-altitude nuclear burst on the U.S. power grid. A comparison is made
between EMP and natural phenomena such as lightning. This paper concludes that
EMP is no more harmful to the power grid than its counterparts in nature. An
upper limit of the electric field of the very fast, high-amplitude EMP is
derived from first principles. The resulting values are significantly lower
than the commonly presented values. Additional calculations show that the
ionization produced by a nuclear burst severely attenuates the EMP.

19
The categories of this paper are: eess
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th