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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.
Piles of snow on slippery roofs can become dangerous projectiles as they melt. Consider a chunk of snow at the ridge of a roof with a pitch of 27. As the snow begins to melt, the c
Determine whether you can examine a microstructure of dimension 10^(-3)mm distinctly with a magnifying lens of focal length 2cm,assuming that your eye has the average visual acuity
Assume a 55.0-kg ice-skater, who was initially at rest, fires a 2.50-kg gun. The 0.045-kg bullet leaves the gun at a velocity of 565.0 m/s. What is the velocity of the ice-
Eddy current loss is proportional to the (A) Frequency. (B) Square of the frequency. (C) Cube of the frequency. (D) Square-root of the frequency.
Why material in solid state are crystalline Most of the materials in solid state are crystalline. Between these many are in the polycrystalline state. To get single crystal one
what are the examples
MANUFACTURING: Nickel film is deposited on ceramic substrate. This is done by electrolytic deposition of nickel in a chemical bath containing hypophosphate. The sheet resistance i
The drawing shows the electrical potential as a function of distance along the x-axis. Determine the magnitude of the electrical field in the (a) A to B, (b) B to C and (c)C to D.
Q. Illustrate what is meant by 4th dimension? Answer:- When a reference is utilized to four-dimensional co-ordinates it is possible that what is referred to is the three s
Short- distance radiotherapy or brachytherapy: The advantage: it gives a very large dose to the tumor with a minimum radiation to the surrounding normal tissue. Disadva
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