The subject of electrical engineering is presented in two volumes. This volume covers all the elements that the reader needs to know about direct current.

Continuing our effort in the new educational standardization that we have already established, we have presented, both theoretically and practically, those concepts in electricity that, while not visible, can only be understood through their effects.

We believe that, combined with the exemplary solved exercises, the reader will master the theory and be able to solve all electrical circuits that may be encountered in practice.

Stefanos Touloglou, Vaggelis Stergiou