electricity Flashcards
equation linking current time and charge
I = Q/t
equation linking charge, with number of particles, time, and elementary charge
Q= net
elementary charge
1.6 x 10^-19
equation linking current elementary charge and number of particles
I = ne
equation linking resistance voltage and current
V= IR
equation linking current, area velocity elementary charge and number of particles
I= nAve
equation linking velocity work done and charge
V=W/Q
equation linking KE with elementary charge and voltage
eV = 1/2 mv^2
equation linking resistance, resistivity area and length
R= (resistivity x L)/A
equation linking power, current and voltage
P= IV
equation linking resistance current and power
P= I^2 R
equation linking power voltage and resistance
p= V^2/R
equation linking work done current time and voltage
W= VIt
equation linking power work done and time
P= W/ t (P=E/t)
equation linking work done voltage and charge
W= QV
when in series: resistance
R1+R2= Rt
when in series: current
I1=I2= I3
when in series:
V1+ V2= Vt
when in parallel: resistance
1/Rt= 1/R1 + 1/R2
when in parallel: current
It= I1 + I2
when in parallel: voltage
V1 = V2 = V3
potential divider equation
Vout = R2/(R1+R3) x Vin
equation linking voltage and resistance
V1/V2 = R1/R2
