Question

a circuit is a path that allows electrons to flow. bulbs in an example of a parallel circuit are sharing three light bulbs.
a parallel circuit has your than two paths for electrons to flow. in this parallel circuit, electricity can flow to any of its light bulbs because each light bulb has its own path.
advantages to parallel circuits:
if one of several bulbs burns out, the rest stay lit.
all bulbs burn at the same brightness.
disadvantages to parallel circuits:
complex circuit
requires more wires
which of the bulbs in the picture will burn the brightest?
all bulbs will have the same brightness.
bulbs a and b
bulbs b and c

Explanation:

In a parallel circuit, the voltage across each component (in this case, each bulb) is the same. The brightness of a bulb is related to the power it dissipates, and power \(P=\frac{V^{2}}{R}\) (where \(V\) is voltage and \(R\) is resistance). Assuming all bulbs have the same resistance \(R\), since \(V\) is the same for all bulbs in a parallel circuit, the power \(P\) (and thus brightness) will be the same for all bulbs.

Answer:

All bulbs will have the same brightness.