For example, a circuit in a house carries 110 volts. In any parallel circuit, the equivalent resistance will be less than any of the branch resistances. Adding more parallel resistances to the branches causes the equivalent resistance in the circuit to decrease. Parallel Circuits 1. In all parallel circuits, there is more than one current path or branch.
All branches connect back to the main line.
The total current is equal to the sum of all branches. The Equivalent Resistance of all the branches combined is less than resistance of the smallest branch. The easiest way is to convert each fraction to a decimal.