How the lightning happens

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About Us Home This is Our Presentation How the Van de Graff generator work? Let see this question 2 1 mplate designed by Bejo How the Lightening happen? 3 Why the Fuel Tank Is Given a Metal Pie That Connected to The Ground? >>>>>>> y Physic’s Group crosoft PowerPoint cument hor : My Group e : 2.881 Kb >>>>>>>> >>>>>>>>

Transcript of How the lightning happens

Page 1: How the lightning happens

About UsHomeThis isOur Presentation

How the

Van de Graff generatorwork?

Let see this question 21

Template designed by Bejo

How the

Lighteninghappen?

3

Why the

Fuel TankIs Given a Metal PieceThat Connected to The Ground?>>>>>>>

My Physic’s GroupMicrosoft PowerPoint DocumentAuthor : My GroupSize : 2.881 Kb

>>>>>>>>>>>>>>>>

Page 2: How the lightning happens

Home About UsA Little About Us

05 Cecilia Intan Wijayanti

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07 Desti Ratna Pratiwi

09 Fajar Khairiah Shafa

14 Kunawati Tungga Dewi

10 Fauzan Nur Romadhon

20 Muhammad Farih Allawiy

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My Physic’s GroupMicrosoft PowerPoint DocumentAuthor : My GroupSize : 2.881 Kb

Page 3: How the lightning happens

How The

Van de GraaffGeneratorWork?

A Van de Graaff generator is an electrostatic generator which uses a moving belt to accumulate very high electrostatically stable voltages on a hollow metal globe on the top of the stand.

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The friction between belt side and lower roller will give negative electric charge at belt side. While the friction between belt side and upper roller (metal) will give positive electric charge at belt side.

Page 4: How the lightning happens

How the

Lighteninghappen?

Lightning: an atmospheric discharge of electricity accompanied by thunder, which typically occurs during thunderstorms, and sometimes during volcanic eruptions or dust storms

>>When the electric field becomes strong enough, an electrical discharge (the bolt of lightning) occurs within clouds or between clouds and the ground.

During the strike, successive portions of air become a conductive discharge channel as the electrons and positive ions of air molecules are pulled away from each other and forced to flow in opposite directions

Page 5: How the lightning happens

Why the

Fuel Tankis Given a Piece of Metal that connected to the ground?

The metal in the fuel tank is used to reduce the risk of blow that is caused by spark that is produced by the difference of potentials

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Page 6: How the lightning happens

How The

Van de GraaffGeneratorWork?

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Schematic view of a classical Van de Graaff generator.1) hollow metal sphere2) upper electrode3) upper roller (metal)4) side of the belt with positive charges5) opposite side of the belt with negative charges6) lower roller7) lower electrode (ground)8) spherical device with negative charges, 9) spark produced by the difference of potentials