UPDATE
coulomb (C)
unit of charge (one coulomb = charge flow in one second of one ampere current)
ampere (A)
unit of current (one ampere = one coulomb/second)
current
rate of flow of charge
I=
Q/t
P=
VI
potential difference
energy transferred per unit charge (work done in J in transforming one coulomb of
charge from one point to another)
V=
W/Q
current in series
same
voltage in series
divided (bigger resistance = bigger share)
current in parallel
splits and rejoins
voltage in parallel
same in each branch
resistance
number of volts needed to make one amp of current flow
R=
V/I