To accurately respond to your question about which graph best represents the voltage along a parallel circuit as each light is turned on, I would need to have the specific graphs labeled A, B, C, and D for reference, as well as information on how the circuit is configured and how the lights behave (e.g., do they have the same resistance, are they identical bulbs, etc.).
In a parallel circuit, the voltage across each branch remains constant and equal to the source voltage. When more lights are added in parallel, the voltage across each light remains the same as the voltage of the power supply, regardless of how many lights are turned on. If the graphs show constant voltage levels regardless of the number of lights turned on, that would likely be the correct representation.
Could you provide more details about the graphs?
1 answer