text: These systems can be simplified via a Y-delta transform, which is a type of star-mesh transform.
full_question: These systems can be simplified via a Y-delta transform, which is a type of star-mesh transform. These systems can be reduced to equivalent two component systems by Norton's theorem and ThÃ©venin's theorem. Analysis of these systems is often done by considering meshes or nodes, which respectively involve the use of the loop and junction rules of Kirchhoff. In graphical depictions of these systems, a triangle next to a line segment represents a diode. A law that applies to these systems states that voltage is equal to current times resistance. For 10 points, name these systems subject to Ohm's law, which may contain elements like a voltage source, resistors, and wires.
first_sentence: These systems can be simplified via a Y-delta transform, which is a type of star-mesh transform.
raw_answer: electrical circuits [or electrical networks]