Static Electricity

Static Electricity Static electricity (elektrostatic) is a collection of large amounts of electric charge, the static (no flow), but in case of discharging the charge time is very short.

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A. How Generates Electricity Charged Objects

Electrically charged object is an object that have excess or shortage of electrons. Some simple ways to create static electricity are:

Example :

B. Types of Electrostatic Discharge

In the atom consists of a nucleus and electrons. The nucleus consists of protons and neutrons, positively charged protons and uncharged neutrons (neutral). Atom is called neutral if the number of protons in the nucleus equals the number of electrons surrounding the nucleus. Positive atom is an atom that has more positive charge than negative charge.

Getting a positive electric charge on an object by induction

Netral

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C. Coulomb law

Charles Augustin de Coulomb was the first to examine the relationship with the two charge electric force and the distance between them by using a torsion balance. In that study ultimately concludes Coulumb in a law called the law of Coulumb:

large repulsion ataugaya attraction between two electrically charged objects, is directly proportional to the respective electric charge and inversely proportional to the square of the distance between the two charged objects.Mathematically, Coulomb's law can be formulated:

221

r

qqkF

F = gaya coulomb ( N )

q = muatan ( C )

r = jarak ( m )

k = ketetapan 9.109 Nm2/C2

D. Electric induction

Electrical induction or influensi induced charge separation event electricity is electricity (electron transfer) as approached by electrically charged objects.

E. Electric field

The electric field is the area surrounding electrically charged objects are influenced by electric force. The magnitude of electric field strength can be determined by the formula:

q

FE

qr

QqkE

2

2r

QkE

E = medan listrik ( N/C )

Q = muatan sumber ( C )

q = muatan uji ( C )

r = jarak dari benda ( m )

F = Gaya ( N )

F. Electric potential

Electric potential is the effort needed to move electric charge from one place to another by the amount of cargo. Electrical potential is formulated:

WV = Q