M3 Revised Flashcards
The charge of electrons are in
Coloumbs
What type of bonds are molecules held together by
Covalent bonds
What are ionic bonds
Between metals and non metals
Conductors have
High mobility of electrons in metals
Most common semi conductors
Silicone and germanium
What is coloumbs law
Opposites attract, likes repel
Current density =
Current
Cross sectional area
What is an oscilloscope
Provide visualisation of electrical engineering
What is faradays electric field theory
The electric fluxes take straight lines
What is electromotive force
The force that electrons require to move
What happens to a glass rod when rubbed with fur
It has a negative charge
What happens when a glass rod is rubbed with silk
Results in a positive charge
In a vacuum what are the charge carriers
Electrons
What are vacuum tubes also known as
Braun tubes
In gasses what are the charge carriers
Electrons and ions
