p4 Flashcards
what will do objects of the same charge do
repel
what graph would show a filament lamp
constant line then increases then is constant again
graph for a diode?
constant line then a rapid increase
what to remove to make an object positive?
remove electrons
how to make an object negative?
add electrons
what do insulators not allow the flow of
charged particles
what decreases as objects move apart
size of force
equation for charge?
current x time
equation for potential difference(2)
energy transferred divided by charge, or current x resistance
in series, total resistance is?
adding resistance of each component
in parallel, resistance is?
resistance of two components is less than the resistor with the smallest resistance
resistance of wire depends on? (4)
length(LONGER IS MORE RES)
cross sectional area(BIGGER DECREASES RES)
temperature(HT INCREASES RES)
conductivity of metal copper
in a thermestor, as temperature increases?
resistance decreases
