Static Electricity And Conduction Flashcards
Are electrons present in all atoms?
Yes
Electrons can be exchanged between materials when?
On contact
The main cause of static electricity is called what?
Triboelectric effect
What was one of the earliest ways for testing positive and negative charges ?
Gold-Leaf Electroscope
What is it called when you obtain a charge without contact
Induced charges
The Si unit of charge is?
Coulomb (C)
What is the number of electrons required to produce a charge of 1 coulomb?
6.24 x 10^18
Charged objects create an __________around themselves
Invisible electric force field
Point sources are?
Charged objects which are much much smaller than the distance between them
The greater the distance, the weaker the force can be written in the formula
F = k (q1 X q2) / d^2
What is electrical conduction?
The movement of electrically charged particular through an electrical conductor
Some liquids will conduct electricity whilst others will not
True or false?
True
What are the main carriers of electrical current?
Dissolved ions
So that they do not normally conduct electricity atoms of gases are what?
Spread widely apart
