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ENERGY LEVELS
The energy levels, measured in electron volts (e.v.) in which orbiting electrons exist comply with a law of physics which states that energy can be given to electrons only in discrete amounts (quanta) which means that there are energy values that an electron cannot acquire. From this it can be deducted that there is a forbidden energy gap between each of the allowed energy bands K to O.
The width of the forbidden energy gap between the top of the valence band and the bottom of the conduction band determine the electrical conducting properties of materials.
The recombination procedure is represented with returning the electron from the CB where it is free into a hole in the VB where it is in a bond. The excess energy of the electron
A solid cylinder of radius 12.1cm and mass 20.2kg starts from rest and rolls without slipping a distance of 6.14m down the house roof that is inclined at 25.3° relative to the hori
1. What evidence suggests that light is a wave? What evidence suggests that light is a particle? 2. In what sense does the "information age" depend on the bending of light?
In a pure semiconductor, concentration of electrons in conduction band is equal to the concentration of holes in valence band. In the process of conduction when an electric field i
SECOND DEFINITION OF IMPULSE: It can be described as, "The change in momentum produced by the force of impulse".
Construction of UJT The fundamental structure of a UJT is illustrated in fig. (a). It comprises an n-type silicon bar that is lightly doped. Two end connections are taken fr
S uppose you have two parallel, metal plates that have an electric field between them of strength 3.0 x 10 4 N/C, and are 0.050 m apart. Consider a point, P, located 0.030 m fr
Why dc ammeter cant read ac current
What is the means in which light waves travel? Ans: Light is the only type of wave that doesn't require a medium. Confirmation that light will travel through vacuum is the
what is a compound pendulum.in detail
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