Electrostatics

Electrification

Too few or to many electrons

Electrostatics

Study of electric charges in stationary form

Coulomb

6.3 X 10^18 electron charges

Methods of electrification

Friction, contact, induction

Friction

Transfer of e- by rubbing objects together

Contact [conduction]

Transfer of e- by touching an electrified object to another object

Induction

Charged and uncharged objects do not touch

Induced electrification of a grounded objet

Grounding enables more permanent change build up.

Laws of electrostatics:1

Like [ same] charges repel; unlike [ different] attract

2. Coulomb's law pt:1 [force]

The force between two charges is directly proportional to the magnitude of the two charges

2. Coulomb's law pt:2 [force]

The force between two charges is inversely proportional to the square of the distance between the objects

Distribution of charge

Over outer surface only a dense conductor or hollow object

Concentration of charge

Concentrated at sharpest curves on irregular objects

Strong fields have =

More lines of force

Strong field also has=

Closer lines of force

What charges are imparted when electrification by contact occurs

It will impart the same charge

What charges are imparted when electrification by grounded object occurs

It will impart the opposite charge

When charges are one meter apart directly multiply across

Charge 1 X charge 2 = # N

If charges increase in meters [math]

one /[ #Of ↑ meters ]^ squared [ then multiply by previous N.