Silicon chips are primarily utilized in which of the following?

Silicon chips are primarily utilized in integrated circuits due to their excellent electrical properties, which make them ideal for creating complex electronic circuitry in a compact form. Integrated circuits (ICs) consist of numerous semiconductor devices, such as transistors, diodes, and capacitors, all fabricated on a single piece of silicon. This allows for the miniaturization of electronic components, leading to immense improvements in performance, efficiency, and reliability in modern electronics.

In contrast, the other options do not primarily utilize silicon chips. Relays are electromechanical devices that use electromagnetism to switch electrical circuits, and while they may have some electronic components, they do not primarily rely on silicon-based technology. Motors operate on principles of electromagnetism to convert electrical energy into mechanical energy and do not inherently involve silicon chips. Transformers work on electromagnetic principles to change voltage levels and are typically made of copper wire and magnetic cores, making them unrelated to the function of silicon chips in integrated circuits.