current and charge Flashcards
what is the elemnatry charge
1.6x10^-19
what is the relative charges of proton and electron
proton is +1e
electron is -1e
2 reasons why current may be larger
greater number of electrons moving past a given point each second
same number of electrons moving faster through the metal
can positive ions move
no but can vibrate
what can structure of metal be seen as
crystal like structure or lattice of positive ions surrounded by number of free electrons
what is an electrolyte
liquid that can conduct electric current
what kind of solution is electrolyte
ionic solution
which is the negative electrode and which is positive electrode
anode and cathodes
anode is positive elctrode
cathode is negative electrode
define ocnventional current
a model used to describe the movement of charge in a circuit from
+ to -
define electron flow
movement of electrons from - to +