1. By PARTHIBAN.N

2. Static electricity Electrostatic Turboelectric series Electrically charge Rub Negative charge Positive charge Proton Electron Neutral Comb Hair Attract Repulse Neutron

3. A stationary electrical charge that is built up on the surface of a material OR Imbalance of Positive and Negative charges

4. + – Proton (positive charge) neutron (neutral) electron (negative charge) + + + – – – atom nucleus

5. Only electrons may be lost or gained The object If the atom loses electrons, it will become +. If the atom gains electrons, it will become –

7. Rubbing materials does NOT create electric charges. It just transfers electrons from one material to the other.

8. When a balloon rubs a piece of wool... – electrons are pulled from the wool to the balloon. The balloon has more electrons than usual. + + + + + – – – – – The balloon : – charged The wool : + charged wool +

9. Some Cartoon which show’s formation of STATC ELECTRICITY

12. Causes of static electricity Contact-induced charge separation Turboelectric effect Pressure-induced charge separation Piezoelectric effect Heat-induced charge separation Pyroelectric effect Charge-induced charge separation Electrostatic induction

13. Static build-up in flowing flammable and ignitable materials  The flowing movement of finely powdered substances or through mechanical agitation can build up static electricity.  Dust clouds of finely powdered substances can become combustible or explosive.  The ability of a fluid to retain an electrostatic charge depends on its electrical conductivity. When low conductivity fluids flow through pipelines or are mechanically agitated, contact-induced charge separation called flow electrification occurs.  Fluids that have low electrical conductivity (below 50 pico siemens/m), are called accumulators.  Fluids having conductivities above 50 pico siemens/m are called non- accumulators

14. "Static Electricity" means "High Voltage"

15. "STATIC ELECTRICITY" is not unmoving, it really means "HIGH VOLTAGE ELECTRICITY." Static electricity is high voltage?..... High voltage has all the characteristics of "static electricity." STATIC ELECTRICITY is HIGH VOLTAGE at low current.

16. WHAT'S THE DIFFERENCE BETWEEN “STATIC” AND “CURRENT” ELECTRCITY How are "Static" and "Current" different? THERE ARE TWO KINDS OF ELECTRICITY, STATIC ELECTRICITY AND CURRENT ELECTRICITY. STATIC ELECTRICITY IS ELECTRICITY AT REST, WHILE CURRENT ELECTRICITY IS ELECTRICITY IN MOTION."

17. "Static" Electricity “ versus "Current" Electricity

18. Static discharge Lightning  Lightning is a dramatic natural example of static discharge  The static charge in air typically breaks down in this way at around 10,000 volts/centimeter (30 kV/cm) depending on humidity  The discharge superheats the surrounding air causing the bright flash, and produces a shock wave causing the clicking sound.  The flash occurs because the air in the discharge channel is heated to such a high temperature that it emits light by incandescence.  The clap of thunder result of the shock wave created as the superheated air expands explosively

19. Removal and prevention of static electricity ANTISTATIC AGENT 1.Humidifier 2.Air Ionizers

20. ANTISTATIC DEVICE Antistatic BagAntistatic Strap

22. When a + charged rod is put near neutral object, ______________ is induced on the side of the object near the rod and _____________ is induced on the side away from the rod. The rod can attract the netural object because _________ between rod and – induced charge > the ________ between rod and + induced charge. How does a positively charged rod attract a neutral object?

24. When a + charged rod is put near neutral object, ______________ is induced on the side of the object near the rod and _____________ is induced on the side away from the rod. The rod can attract the netural object because _________ between rod and – induced charge > the ________ between rod and + induced charge. How does a positively charged rod attract a neutral object? negative charge positive charge attraction repulsion