2026-04-14T02:41:48Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/4487802026-01-30T06:34:14Zcom_2072_1033col_2072_452950

Exploring Ohm’s law: the randomness of determinism Cuadras Tomàs, Àngel Cuadras Alba, Marina Cuadras Alba, Gaia Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica Universitat Politècnica de Catalunya. EPIC - Energy Processing and Integrated Circuits Àrees temàtiques de la UPC::Enginyeria elèctrica Ohm’s law Entropy Randomization Determinism Joule effect Dissipation Relaxation time Ohm’s law has become ubiquitous in numerous scientific and technical disciplines. Generally, the subject is introduced to students in secondary school as fundamental technical knowledge. The present study proposes a visual model to facilitate the comprehension of Ohm’s law in electron transport in solids to pre-university and university students. The objective is to facilitate students’ comprehension of the correlation between electron movement in solids, as depicted by a current, and the energy of the system, which is introduced by the electric field and the material’s structure. The approach’s originality lies in its novel strategy for describing electron trajectory randomization. This enables the establishment of a relationship between the material’s structure and its resistivity. Moreover, the description of electron transport and scattering processes is presented regarding different types of entropy. It shows that electrons follow the maximum trajectory entropy and that thermal entropy has a quadratic relationship with configurational entropy. The determinism of Ohm’s law is inferred from statistical entropy. Postprint (published version) 2025-10-01 Article Cuadras, A.; Cuadras, M.; Cuadras, G. Exploring Ohm's law: the randomness of determinism. «Entropy (Basel)», 1 Octubre 2025, vol. 27, núm. 10, article 1058. 1099-4300 https://hdl.handle.net/2117/448780 10.3390/e27101058 eng https://www.mdpi.com/1099-4300/27/10/1058 http://creativecommons.org/licenses/by/4.0/ Open Access Attribution 4.0 International 16 p. application/pdf