what is mosfet in electronics

A MOSFET, or metal-oxide-semiconductor field-effect transistor, is a type of field-effect transistor with a MOS structure. It is a three-terminal device with gate (G), drain (D), and source (S) terminals. The current conduction between the drain and source is controlled by a voltage applied to the gate terminal. MOSFETs are widely used in digital and analog circuits for switching or amplifying electronic signals. They are known for their relatively high-speed and low-loss operation, and they can be made with either p-type or n-type semiconductors, allowing for the creation of complementary pairs of MOS transistors with very low power consumption in the form of CMOS logic. The ability to change conductivity with the amount of applied voltage makes MOSFETs suitable for a wide range of applications, including memory chips, microprocessors, and power electronic circuits.