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 is solid material whose electrical conductivity at room temperature lies between conductivity of a conductor and that of an insulator. At high temperatures its conductivity approaches that of a metal, and at low temperatures it acts as insulators. Every material can be classified as a conductor, an insulator, or a semiconductor. These three distinct classes of material arise from a difference in the structure of the allowed electron energy level. In particular every material possesses both valance and a conduction band for electrons and the energy difference between these two bands will determine how easily an electric current will pass through the material. In semiconductor there is a limited movement of electrons, depending upon the crystal structure of the material used. The substances firstly used for semiconductors were the elements Silicon, germanium and gray tin. It was establish that the incorporation of some impurities in them improves their conductive properties. The property either adds free electrons or creates in holes in the crystals structures of the host substances by attracting electrons. Thus there are two kinds of semiconductors: N-type (negative) in which the current carriers are negative and the P-type, in which the positively charged holes move and carry the current. The process of adding this impurity is called doping, the impurities themselves are called do pants. Certain chemical compounds, including Gallium Arsenide, Indium antimonite, and aluminium phosphate are semiconductors.
The effects of short circuits: A short circuit is a path for current where a path should not exist, the path is generally considered to have a low resistance. If a short circui
write the transformer assignment
defination them ????
population inversion The process in which the number of electrons (N 2 ) in a higher energy state called ‘metastable state of an active medium is increased to a value greate
The thrust developed to propel the jet ski shown in Fig is a result of water pumped through the vehicle and exiting as a high-speed water jet. For the conditions shown in the Fig,
l question.. a particle rest on the top of a hemi spher radius R find the smallest horizondal velocity that must imparted to the particle if it''s to leave the hemi
Can you explain about sharpness of resonance?
Maxwell''s equations are a set of partial differential equations that, together with the Lorentz force law, form the foundation of classical electrodynamics, electric circuits and
A diffraction grating with slits separated by 3.40 x 10 -6 m is illuminated by light with a wavelength of 589 nm. The separation between lines in the diffraction pattern is 0
Q. An X-ray diffraction of a crystal gave a closest line at an angle of 6o27'. If the wavelength of X-ray is 0.58Ao, find the distance between the two cleavage planes. 2d Sinθ
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