Circuit Theory
Ohm's law states that:
Voltage = Resistance * Current
Voltage = Resistance * Current
Kirchhoff's Voltage Law states that in series:
Total Voltage = Sum of individual Voltages
Total Voltage = Sum of individual Voltages
Kirchhoff's Current Law states that in parallel:
Total Current = Sum of individual Currents
Total Current = Sum of individual Currents
These laws can be applied to breadboarding in the way that current flows through it when a voltage is applied.