vande graaff generator
Post on 25-Jun-2015
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By Pintoo Sarkar
1. Protons: positive charge
2. Electrons: negative charge
3. Neutrons: no charge
Insulators
Conductors
Visible attraction
Repulsion
Electrical sparks
Hand Glass Hair Nylon Wool Fur Silk Paper Cotton Hard rubber Polyester Polyvinylchloride plastic
This chargeimbalance
is the origin of “Static
Electricity”
Combing your hair moves electrons from your hair to the comb
The comb will now have an electric static charge
The basic fundamental principle behind thisapparatus is separating opposite charges atboth ends of the rubber belt
I. MotorII. Upper and lower
roller III. BeltIV. Upper and lower
brush V. Metal sphere
As the belt keeps running, more charges are deposited on both pulleys
1) Materials involved
2) Surface area connecting the materials
3) Humidity
Static electricity can build up in ourbodies and cause a spark to jump fromour bodies to pieces of metal or thosein our surroundings
By : Pintoo SarkarClass : 12th A
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