More Charge Flashcards
Define Coulomb.
Charge flow in 1 second.
What is the arrangement of particles in a metal?
Regular lattice of positive ions and delocalised electrons.
What is the direction of electrons and conventional current?
N to P.
P to N.
Define electrolyte.
A solution carrying electric current.
What are the charges of the anode cathode anion and cation.
P,N,N,P
What is the law of conservation of charge?
Charge can neither be created nor destroyed - no change as system evolves over time.
What is Kirchoff’s first law?
sum of I in = Sum of I out.
Define number density.
The number of electrons per unit volume.
Order materials in level of number density.
Insulator, semi-conductor, conductor.
What is the number density of metals and semi-conductors?
10^28 and 10^17
How does current affect temp.
e move faster so temp increases.
What is the equation for current?
I = Anev
Define mean drift velocity.
Average velocity of charge carriers in an electric field. Increases as area decreases.
