keywords:
Bookmark and Share



Front Back
Ohm's Law
V=IR
I=V/R
R=V/I
Watt's Law
P=IV
P=V2/R
P=I2R
Total Resistance Series Circuit
R1+R2+R3...=RT
Total Resistance Parallel Circuit
RT=1/(1/R1+1/R2+1/R3...)
Two Resistor Special Case
RT=R1R2/(R1+R2)
Kirchhoff's Voltage Law
the algebraic sum of all the voltages (drops and sources) around a single closed path is zero
Voltage Divider Formula
Vx=(Rx/RT)VS
Kirchhoff's Current Law
The total current into a node equals the total current out of the node
Current-divider Formula
Ix=(RT/Rx)IT
Wheatstone Bridge Resistance Ratio
R1/R3=R2/R4
x of y cards