Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of a dielectric droplet suspended in a magnetic fluid in
  electric and magnetic fields   The behavior of a microdrop of dielectric liquid suspended in a magnetic
fluid and exposed to the action of electric and magnetic fields is studied
experimentally. With increasing electric field, the deformation of droplets
into oblate ellipsoid, toroid and curved toroid was observed. At the further
increase in the electric field, the bursting of droplets was also revealed. The
electrorotation of deformed droplets was observed and investigated. The
influence of an additional magnetic field on the droplet dynamics was studied.
The main features of the droplet dynamics were interpreted and theoretically
examined.

25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci