In a parallel circuit, the voltage across each branch remains

In a parallel circuit, the voltage across each branch remains

• A. The same
• B. Increases with each branch
• C. Is undefined
• D. Halves with each additional branch

Answer: (A)

In a parallel circuit, each branch is connected across the same two nodes, so they all share the same potential difference. The voltage across every branch equals the source voltage (assuming an ideal source with negligible internal resistance). This is why adding more branches doesn’t change the voltage from branch to branch—the branches are all tied to the same points. Currents split among the branches according to each branch’s resistance, with I_branch = V/R_branch. So while the voltage remains the same, the total current from the source increases as more paths are available for current to flow. The other options would imply the voltage changes as you add branches, which isn’t how parallel wiring behaves (and "undefined" or "halves" don’t describe the equal, fixed voltage across each branch).

In a parallel circuit, each branch is connected across the same two nodes, so they all share the same potential difference. The voltage across every branch equals the source voltage (assuming an ideal source with negligible internal resistance). This is why adding more branches doesn’t change the voltage from branch to branch—the branches are all tied to the same points.

Currents split among the branches according to each branch’s resistance, with I_branch = V/R_branch. So while the voltage remains the same, the total current from the source increases as more paths are available for current to flow. The other options would imply the voltage changes as you add branches, which isn’t how parallel wiring behaves (and "undefined" or "halves" don’t describe the equal, fixed voltage across each branch).