Why does a semicondctor act as an insulator at 0'k and why its conductivity increases with increasing temperature?
Answer Posted / neeraj batra
because thermal energy of valence electrons is zero, so they
can't move as they are bound with the atoms, however with
very low binding energy which can be supplied by little
thermal energy (temperature). So due to increase in number
of free electrons with increase in temperature, the
conductivity increases.
| Is This Answer Correct ? | 7 Yes | 12 No |
Post New Answer View All Answers
Physics short answer to two significant figures, what is the index of refraction of air?
What happens to the velocity of sound with the rise of temperature?
Explain the domestic consumption of electricity is calculated in?
Is air travel time the same whether or not the plane is flying with or against the rotation of the earth?
the department of energys b-factory at the stanford linear accelerator lab is designed to collide electron and positron beams of unequal energies and producemillions of these particles, which are commonly called?
Why is it that sound waves are not normally considered as having particle-like properties, nor raindrops as having wave-like properties? : quantum physics
Why a capacitor is a voltage sensitive device?
Explain what is h1n1?
What seven colors appear to be white when mixed together?
Explain the difference between a lens and a mirror?
How do you find the refractive index of a liquid by using total internal reflection?
What is the difference between diffraction and interference?
What are the ten satellite launched from india and year of launch?
Why do you not collapse under the pressure created by the atmosphere?
How does a sound wave travel in air?