(1) Laws of parallel circuits.

(a) A parallel circuit has two or more paths for current to flow.

(b) Applied voltage is the same to each branch of the circuit.

(c) When resistance is added in parallel, the total or effective

(d) The sum of the amperage in each branch is equal to the total

amperage.

(e) The total or effective resistance will always be less than the

lowest resistance.

(2) Figure 17 demonstrates how the voltage source is applied equally

to each of the electrical components in a parallel circuit and how the parallel

circuit has two or more paths for current to flow. Opening or closing the

circuit of any branch does not affect the other circuits.

Figure 17. Parallel Circuits.