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What is Avalanche Breakdown
Minority carriers, under reverse biased conditions, flowing through the junction acquires a kinetic energy that increases with increase in reverse voltage. At a sufficiently high reverse voltage (say 5v or more), kinetic energy of minority carriers becomes so large that they knock out electrons from the covalent bonds of semiconductor material. As a result of collision, liberated electrons in turn liberate more electrons and current becomes very large leading the breakdown of crystal structure itself. This phenomenon is known as Avalanche Breakdown.
A balance trick Get a smooth metre stick and let it rest lightly on your two forefingers. Place your fingers near the ends of the stick and then move them in the direction of t
Huygens wave theory: Huygen's wave theory is not correct in all respects. 2. It assumes simply that light energy is propagated as a wave. 3. At the time of his proposition
What is index fiber? How you define the modes in an optical fiber? Give a relation between core diameter and numerical aperture. Ans.: The index profile of a single mode fi
a) Heat produced is directly proportional to the square of the current passing by a conductor. b) This effect is produced because of collision of free electrons with positive io
Why is it that the frequency of light remains the constant as it undergoes refraction at the interface of two material mediums? Ans) If frequencies are dissimilar in different m
#quuiujiestion..
A steel wire in a piano has a length of 0.6000 m and a mass of 3.600 10 -3 kg. To what tension must this wire be stretched in order that the fundamental vibration correspond to
how gas expened ?
Is it probable for the electric field to be non-zero at a point in space where the electric potential is zero? Ans: Regard as for instance the case of an electric potential
a pond is an example of
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