Parallel Circuit Rules

Voltage

Components in a parallel circuit share the same voltage:

• E_total = E₁ = E₂ = . . . E_n

Resistance

Total resistance in a parallel circuit is less than any of the individual resistances:

• R_total = 1 / (1/R₁ + 1/R₂ + . . . 1/R_n)

Current

Total current in a parallel circuit is equal to the sum of the individual branch currents:

• I_total = I₁ + I₂ + . . . I_n

RELATED WORKSHEETS:

• Parallel DC Circuits Practice Worksheet With Answers