What happens to the total voltage across a parallel circuit as more branches are added?

What happens to the total voltage across a parallel circuit as more branches are added?

• A. The total voltage increases
• B. The total voltage remains constant
• C. The total voltage decreases
• D. The total voltage fluctuates

Answer: (B)

In a parallel circuit, the voltage across each branch is the same and remains constant regardless of how many branches are added. This property is fundamental to parallel circuits: each new branch provides an additional pathway for current to flow, but does not affect the overall voltage supplied by the source. When more branches are added, the total current flowing from the source increases as each branch has its own current path, but the voltage across each branch—defined as the voltage provided by the power source—remains unchanged. This characteristic ensures that all devices connected in parallel receive the same voltage, leading to consistent operation across the circuit. Thus, as you add more branches to a parallel circuit, the total voltage remains constant, aligning perfectly with the answer provided.

In a parallel circuit, the voltage across each branch is the same and remains constant regardless of how many branches are added. This property is fundamental to parallel circuits: each new branch provides an additional pathway for current to flow, but does not affect the overall voltage supplied by the source.

When more branches are added, the total current flowing from the source increases as each branch has its own current path, but the voltage across each branch—defined as the voltage provided by the power source—remains unchanged. This characteristic ensures that all devices connected in parallel receive the same voltage, leading to consistent operation across the circuit.

Thus, as you add more branches to a parallel circuit, the total voltage remains constant, aligning perfectly with the answer provided.