equations Flashcards
1
Q
current
A
current= charge/time
2
Q
energy transferred
A
energy transferred= charge x potent ion difference
3
Q
power (energy transfer rate)
A
power = energy transformed/ time
4
Q
power (electric device)
A
power = P.D x current
5
Q
resistance
A
resistance = P.D / current
6
Q
wave speed
A
wave speed= frequency x wavelength
7
Q
distance
A
distance = speed x time
8
Q
density
A
density=mass/volume
