Electricity Flashcards
Static electricity definition
Buildup of negative charge (electrons) which are released
An object is charged when
Electrons are added or taken away
Resistance definition
How hard it is for current to pass through a component / circuit
If you add resistors in a series circuit the current
Increases
If you add resistors in parallel the current
Decreases
AC meaning
The current constantly switches directions
DC meaning
Current that flows in a single direction
Where does DC come from 2 things
Battery
AC current through a diode
Current definition
Flow of electrons around a circuit
In a series circuit the current is
The same everywhere
In a parallel circuit the current
Is the sum of the current flowing through all the branches
Fixed resistor graph line
Straight line that passes through origin
y = current
x = potential difference
Filament bulb graph line
Passes through origin and levels off in positive and negative section
y = current
x = voltage
Diode graph line
At zero until positive voltage
through origin
y=current
x=voltage
LDR and Thermistor graph line
Hyperbola