5/16/2023 0 Comments Transistor diagram![]() In small quantities, transistors are used to create simple electronic switches. On its own, a transistor has only one circuit element. As a switch, it can be in one of two distinct states - on or off - to control the flow of electronic signals through an electrical circuit or electronic device. When working as an amplifier, a transistor transforms a small input current into a bigger output current. Typically, transistors consist of three layers, or terminals, of a semiconductor material, each of which can carry a current. Nowadays in the curiosity of providing comfortable and secure living the design of automation systems or the fire detection systems this switching technique of the devices plays a dominant role.A transistor is a miniature semiconductor that regulates or controls current or voltage flow in addition amplifying and generating these electrical signals and acting as a switch/gate for them. This can be either for the alternating supply or the direct supply. There are many applications in the practical world regarding relays, motors, etc., in every practical involvement plays a major role in switching the devices. Please refer to this link to know more about Transistors MCQs & Transistor Biasing MCQs. This resistance tends to increase when the sensed temperature is low and a decrease in the resistance is observed when the sensed temperature is high. The thermistor is referred to as a resistor. A component called thermistor that senses the surrounding temperature can be monitored by using this switching technique.It is done by using a light-dependent resistor (LDR). It facilitates to switch on the light provided a bright environment and switches off based on the dark environment. One of the examples of these switches is light-bulb.By varying the values of the frequencies of transistor the speed of the motor can be varied. ![]() In order to turn ON the motor and OFF it this application is used. The dc motors can be controlled and monitored by using this concept of transistors. ![]()
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