CompTIA A+ Core 1 (220-1201) Practice Exam

The component that regulates electricity to chips in a computer system is the transistor. Transistors serve as electronic switches or amplifiers, controlling the flow of electrical signals within circuits. They can turn the current on or off, allowing them to manage how much voltage and current flows to various microchips in a computer.

Transistors play a crucial role in digital circuits, where they act as switches in logic gates, which are the building blocks of all computing tasks. By modulating this electrical current, transistors enable the processing of binary data, which is fundamental to the operation of everything from CPUs to memory modules.

While resistors, capacitors, and inductors are important components in electronic circuits, they serve different purposes. Resistors limit current, capacitors store electrical energy, and inductors store energy in a magnetic field. None of these components perform the active role of regulating current flow to chips like transistors do.