my question is its written in book that when we heat the crystle than an electron is free to move and it conduct electricity
mean when thermal enegy is provide to any crytal it conduct electricity
soo hot body conduct electricity very easyly the book say that the elctron may break away from a covalent bond and become free conductive electron
sun is too hot why it cannt conduct electricity
Asked by saggugurupal | 20th Oct, 2016, 06:48: PM
Sun is very hot. Its core is made up of plasma which is a mixture of electrons and ions. So, there are a lot of free electrons inside the Sun. Hence, there is a lot of electricity generated from the Sun.
Infact the Sun does conduct a lot of electric current into the space. This current is what generates the large magnetic field of the Sun. However, we do not feel its effects because only a small fraction reaches Earth and the Earth's atmosphere blocks a major part of it.
Answered by Romal Bhansali | 21st Oct, 2016, 12:22: PM
- Draw a graph indicating the variation of resistivity of a semiconductor with temperature
- Why do conductors not form holes?
- How does the addition of trivalent impurity to a pure semiconductor affect the electron hole pairs at room temperature?
- For the same degree of doping, why is the conductivity of n-type semiconductor greater than that of p-type semiconductor?
- Why is a semiconductor virtually an insulator at room temperature?
- Why are germanium and silicon preferred to other semiconductors in solid state devices?
- Why are n-type and p-type semiconductor electrically neutral?
- Why do hole carriers present in n-type semiconductor?
- Why is the amount of impurity added to a pure semiconductor closely controlled?
- The hole current is due to the movement of valence electrons from one covalent bond to another. Why is then the name hole current?
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