Table of Contents
- 1 Why are semiconductors used in transistor?
- 2 Which is mainly used for making transistors and semiconductors?
- 3 Why are semiconductors used in diodes?
- 4 Which of the following is used in making semiconductors?
- 5 Why semiconductors are important in electronics?
- 6 Why is a transistor classified as a semiconductor?
- 7 How does a transistor work?
- 8 What is the difference between insulators and semiconductors?
Why are semiconductors used in transistor?
Transistors, and many other electronic devices, are made of semiconductors — materials that conduct electricity only weakly under certain conditions. Radar technology, developed during World War II, used tow semiconductors, germanium and silicon, to detect short-wave radio signals.
Which is mainly used for making transistors and semiconductors?
Most transistors are made from very pure silicon, and some from germanium, but certain other semiconductor materials are sometimes used.
What properties of semiconductors make them useful in electronic devices?
The property of semiconductors that makes them most useful for constructing electronic devices is that their properties allow them to be used to control the flow of charge. Atomic particle with a positive electric charge. How can an object become charged? Objects become charged when their atoms gain or lose electrons.
Why are semiconductors used in diodes?
Diodes are basic unidirectional semiconductor devices that will only allow current to flow through them in one direction only, acting more like a one way electrical valve, (Forward Biased Condition).
Which of the following is used in making semiconductors?
The most used semiconductor materials are silicon, germanium, and gallium arsenide. Of the three, germanium was one of the earliest semiconductor materials used. Germanium has four valence electrons, which are electrons located on the outer shell of the atom.
Which of the following is used for making transistors?
Solution(By Examveda Team) The two elements that are frequently used for making transistors are Silicon and Germanium.
Why semiconductors are important in electronics?
In a process called doping, small amounts of impurities are added to these pure elements, causing large changes in the conductivity of the material. Due to their role in the fabrication of electronic devices, semiconductors are an important part of our lives. Imagine life without electronic devices.
Why is a transistor classified as a semiconductor?
A transistor is not ‘classified’ as a semiconductor. A transistor is MADE from semiconductor materials. Those are materials that have controlled amounts of impurities that allow their conductivity to be controlled. This behavior of their constituent materials is what makes transistors work.
Why do we use semiconductors instead of C conductors?
Conductors would just send current everywhere which we did not want. We use semiconductor because it has negative temp constant i. e it’s resistivity increase with the decrease in temp but in case of conductors it’s positive temperature constant where resistivity increase with the increase in temp.
How does a transistor work?
The transistor is a device designed to control electron flows — it has a gate that, when closed, prevents electrons from flowing through the transistor. This basic idea is the foundation for the way practically all electronics work.
What is the difference between insulators and semiconductors?
Insulators have an atomic structure that inhibits electron flow. Semiconductors can do both. The control of the flow of electrons is what makes electronics work. Finding a way to harness the unique nature of semiconductors became a high priority for Bell Labs.