Resistive components in electrical circuits are used to provide resistance to the flow of electric current, dissipating energy in the form of heat. They are fundamental in controlling current levels, dividing voltages, and protecting other components within the system.
Resistance is the opposition that a substance offers to the flow of electric current, measured in ohms. It is a fundamental concept in physics and engineering, affecting how electrical circuits function and influencing the design of electronic components.
Johnson–Nyquist noise, also known as thermal noise, is the electronic noise generated by the thermal agitation of electrons in a conductor at equilibrium and is directly proportional to temperature and bandwidth. It is an important consideration in electronics as it sets a fundamental noise floor, limiting the sensitivity of electronic devices and systems.