Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Semiconductor Devices and their Uses:
If a junction is formed between a p-type and an n-type'semiconductor, the device called a p- n junction diode acquires a peculiar pppeny. It conducts current only in one direction! Hence, it is usedto convert alternating current (a.c.),into direct current (44 The device acts as an open circuit in Fig. It acts as ag open circiit Fig. And since it is a non-mechanical switch, it acts very fast.
More complicated devices using n-p-n or p-n-p combinations of semiconductor mat6rial are called transistors. They have even more interesting properties. They can be so connected to batteries that a small variation of current on one side, can lead to a large variation on the other side. In technical jargon, the transistor can 'amplify' small signals. Transistors can also be connected to other electrical components (resistors, capacitors etc.) to produce a.c. of high frequency.
Semiconductor devices are extremely small in size. Their properties can be controlled at will. This may be done by changing the amount of doping or by introducing more sections of p-type or n-type semiconductors on the same crystal. A large number of new semiconductor devices have been made in this way. Further, by suitable methods, they can be produced in a large chain or according to a desired pattern'on a non-conducting surface called a chip. When a large number of semiconductor devices are produced on a single chipto perform specific functions, the resulting device is called an integrated circuit (IC). Because of their small size and their sturdiness, and because they consume almost no energy, these devices hive become very popular as components in TV sets, computers and many kinds of instruments used for communication and control.
The Water Cycle: The importance of water is obvious to everyone. Water is synonynlou. with life. The most comnlon substance in the body of iinv organism is water. It is al
What reacts with zirconium/
The Fire Triangle Generally, a fire needs three things to burn: Fuel - something to bum, e.g.oi1. Oxygen - to maintain combustion. Ignition - something to start
what is inside a volcano
Ask question #Minimum 100 wordsaccepted# examine the relationship between logic and philosophy
A model illustrating how an eclipse appears The sun is shown by an opal electric bulb shining by a circular hole 5 cm in diameter in a piece of blackened cardboard. The corona
how i can get the nams of all the body of the human
Why does a glacier move? It moves due to the huge pressure of the ice and snow lowers the freezing point of its lower layers, causing them to melt.
Explain Brain or Detector - Mechanism of Colour Perception The fibre identification of colour takes place in the brain. If any of these four pre-requisites are not present, the
what is meaning of solid'' liguid'' gases?why eresers float in water?why deos paper sink in water?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd