Everyday Electricity

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Everyday Electricity February 26th, 2009

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This kind of Van de Graaff generator is made up of: • A motor • Two rollers • A belt • Two brush assemblies • An output terminal (usually a metal or aluminum sphere) The strong negative charge from the roller now begins to do two things: 1. It repels the electrons near the tips of the lower brush assembly. 2. It begins to strip nearby air molecules of their electrons. Applications: 1. It is used to generate x-rays, which is widely used in medicine field. 2. It is used in atom smasher’s, which is used in research purposes. 3. It found applications in physics, medicine, and astro physics.

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In this research we will see how prophet Mohamed talked precisely about phases of lightning as there is a complete conformance between his saying and recent discoveries concerning the lightning as recent scientists found that the lightning strike happens in a fractions of a second ! This scientific fact was discovered by the use of an advanced camera which is able to capture one thousand photo per second. The question is who told our illiterate prophet this scientific information 1400 years ago?

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As the belt passes in front of the lower comb, it receives negative charge that escapes from its points due to the influence of the electric field around the lower pulley, that ionizes the air at the points. As the belt touches the upper roller (3), it transfers some electrons, leaving the roller with a negative charge (if it is insulated from the terminal), which added to the negative charge in the belt generates enough electric field to ionize the air at the points of the upper comb. Electrons then leak from the belt to the upper comb and to the terminal, leaving the belt positively charged as it returns down and the terminal negatively charged. The sphere shields the upper roller and comb from the electric field generated by charges that accumulate at the outer surface of it, causing the discharge and change of polarity of the belt at the upper roller to occur practically as if the terminal were grounded. As the belt continues to move, a constant charging current travels via the belt, and the sphere continues to accumulate negative charge until the rate that charge is being lost (through leakage and corona discharges) equals the charging current...............The larger the sphere and the farther it is from ground, the higher will be its final potential.

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