Question

interpreting circuit diagrams
use the diagram and drop - down menus to answer each question.
which circuit is a parallel circuit?
which circuit is a series circuit?
in which circuit do the light bulbs all shine at their maximum brightness?

Explanation:

Step1: Recall circuit - type definitions

In a series circuit, components are connected end - to - end in a single path for current flow. In a parallel circuit, components are connected across common points, creating multiple paths for current flow.

Step2: Identify parallel circuit

Circuit B has multiple paths for the current as the light bulbs are connected across common points, so Circuit B is a parallel circuit.

Step3: Identify series circuit

Circuit A has the light bulbs connected end - to - end in a single path for the current, so Circuit A is a series circuit.

Step4: Determine maximum brightness

In a parallel circuit, each bulb has the full source voltage across it. In a series circuit, the voltage is divided among the bulbs. So, the bulbs in Circuit B shine at their maximum brightness.

Answer:

Which circuit is a parallel circuit? Circuit B
Which circuit is a series circuit? Circuit A
In which circuit do the light bulbs all shine at their maximum brightness? Circuit B