What are the two types of transistors?

Transistors are basically classified into two types; they are Bipolar Junction Transistors (BJT) and Field Effect Transistors (FET). The BJTs are again classified into NPN and PNP transistors.

What are the two main applications of transistors? Transistors are commonly used in digital circuits as electronic switches which can be either in an "on" or "off" state, both for high-power applications such as switched-mode power supplies and for low-power applications such as logic gates.

What devices use transistors? By far the most common application of transistors today is for computer memory chips—including solid-state multimedia storage devices for electronic games, cameras, and MP3 players—and microprocessors, where millions of components are embedded in a single integrated circuit.

What is PNP transistor?

The PNP Transistor is the exact opposite to the NPN Transistor device we looked at in the previous tutorial.... Then, PNP transistors use a small base current and a negative base voltage to control a much larger emitter-collector current.

What is a transistor symbol? On a bi-polar junction transistor (BJT), those pins are labeled collector (C), base (B), and emitter (E). The circuit symbols for both the NPN and PNP BJT are below: The only difference between an NPN and PNP is the direction of the arrow on the emitter. The arrow on an NPN points out, and on the PNP it points in.

Can I use any transistor for amplifier? A transistor can be used as an amplifier by enhancing the weak signal's strength.

Can a transistor converts AC to DC? A single transistor may not convert DC to AC. But if you use a combination of minimum 2 transistors with 2 capacitors you can do it. The circuit is known as the half-bridge inverter circuit.... An NPN transistor is often used inside inverter circuits to convert DC to AC.

How many transistors are in a CPU? 290 million transistorsThe processor contains more than 290 million transistors, uses Intel's 65-nanometer process technology. It is produced in several of the world's most advanced laboratories.

Does a transistor change voltage? I t can step up voltage, but it cant increase the watts. Transistors (and any sort of valve or switch) can amplify. They do it by using a tiny wattage to control a power supply which can output a huge wattage. The large output comes from the power supply, while the input signal is valving the transistpr on and off.

Why do transistors have 3 legs? The transistor has three legs, these are the base, collector and the emitter.... The base of the transistor is used to switch current through the collector and emitter. When the base is between 0V and 0.7V it is switched off and above 0.7V it is switched on allowing the current to flow from the collector to the emitter.

How transistors are made so small? Silicon's atomic size is about 0.2 nanometers. Today's transistors are about 70 silicon atoms wide, so the possibility of making them even smaller is itself shrinking.... But if we could use light, made up of photons, instead of electricity, we could make transistors even faster.

How can you tell the difference between a PNP and NPN transistor? One of the major difference between the NPN and PNP transistor is that in the NPN transistor the current flow between collector to emitter when the positive supply is given to the base, whereas in PNP transistor the charge carrier flows from the emitter to collector when negative supply is given to the base.

Which is better PNP or NPN transistor? Answer. A NPN transistor has electrons as majority charge carriers whereas the PNP transistor has holes as majority charge carrier. The mobility of electrons is better than mobility of holes.... mobility of electrons is more than hole,so as a result npn transistor are faster than pnp that's why they are preferred..

Are transistors nanotechnology? Nanotechnology-Inspired Transistor Applications
Multiple types of transistors have been created using nanomaterials. However, the field-effect transistor is one that is often seen because of its versatility and compatibility with devices that have started to use nanomaterials in their core design.

What is another example of nanotechnology? Examples include titanium dioxide and in sunscreen, cosmetics and some food products; silver nano-particles in food packaging, clothing, disinfectants and household appliances such as Silver Nano; carbon nano-tubes for stain-resistant textiles; and cerium oxide as a fuel catalyst.