  Despite the usefulness of the anomalous Nernst conductivity
($\alpha^{A}_{xy}$) for studying electronic band structures and exploring
magnetic materials with large transverse thermopower, there has not been a
straightforward way to obtain $\alpha^{A}_{xy}$ in the experiment. Here, we
propose a simple and versatile method enabling direct electrical probing of
$\alpha^{A}_{xy}$, which is realized by creating a closed circuit consisting of
a target magnetic material and a non-magnetic conductor. This method was
experimentally demonstrated on a thin film of magnetic Weyl semimetal
Co$_{2}$MnGa, where the closed circuit was formed simply by connecting both
ends of the Co$_{2}$MnGa film with a Au wire. A good approximation of
$\alpha^{A}_{xy}$ was obtained in a wide temperature range, validating the
proposed method and exhibiting its potential for aiding the further development
of topological materials science and transverse thermoelectrics.
