The correct answer is C. Field Effect Transistor.
A field-effect transistor (FET) is a type of transistor that uses an electric field to control the flow of current between its terminals. FETs are used in a wide variety of electronic devices, including amplifiers, oscillators, and switches.
FETs are classified into two main types: junction field-effect transistors (JFETs) and metal-oxide-semiconductor field-effect transistors (MOSFETs). JFETs are made of semiconductor material, while MOSFETs are made of a combination of semiconductor material and metal.
FETs work by controlling the flow of current through a channel of semiconductor material. The channel is connected to two terminals, called the source and drain. The third terminal, called the gate, is insulated from the channel.
When a voltage is applied to the gate, it creates an electric field that attracts or repels the charge carriers in the channel. This changes the resistance of the channel, which in turn controls the flow of current between the source and drain.
FETs are a type of transistor that is used in a wide variety of electronic devices. They are known for their high efficiency and low power consumption. FETs are also relatively easy to manufacture, which makes them a popular choice for many applications.
Here is a brief explanation of each option:
- A. Farad Effect Transformer: This is not a real thing. A farad is a unit of capacitance, and a transformer is a device that transfers electrical energy from one circuit to another.
- B. Field Effect Transformer: This is also not a real thing. A field effect is a region of space where a force is exerted on charged particles due to an electric field. A transformer is a device that transfers electrical energy from one circuit to another.
- C. Field Effect Transistor: This is a real thing. A field effect transistor (FET) is a type of transistor that uses an electric field to control the flow of current between its terminals. FETs are used in a wide variety of electronic devices, including amplifiers, oscillators, and switches.
- D. French Energy Transfer: This is also not a real thing. French energy transfer is not a recognized term in the field of physics or engineering.