I tried to gather a few formulas from my studies, pasting them in the form of an image. [img alt_text = 'Electrical formulas' description =' Voltage, ohmic law, current, resistivity, wire resistance, thermal resistance, electrical power, electrical work, Kirchhoff's law I (junction law), Kirchhoff's law II. Act (Loop Act) '] https:///wp-content/uploads/2020/02/keplet1.jpg [/ img]