In a parallel circuit, the voltage across each branch is equal to the source voltage.

In a parallel circuit, the voltage across each branch is equal to the source voltage.

• A. True.
• B. False.
• C. Only for identical resistors.
• D. Depends on the branch current.

Answer: (A)

In a parallel circuit, all branches are connected directly across the same two nodes, so they share the same voltage as the source. This means the potential difference across each branch equals the source voltage, regardless of how many branches there are or what each branch’s resistance is. The current in each branch can differ (I = V/R for each branch), but the voltage across every branch stays the same. The only caveat is if real components have non-negligible internal resistance or wiring drops, which can create small deviations, but in ideal circuit theory the voltage across all branches exactly matches the source voltage. So the statement is true.

In a parallel circuit, all branches are connected directly across the same two nodes, so they share the same voltage as the source. This means the potential difference across each branch equals the source voltage, regardless of how many branches there are or what each branch’s resistance is. The current in each branch can differ (I = V/R for each branch), but the voltage across every branch stays the same. The only caveat is if real components have non-negligible internal resistance or wiring drops, which can create small deviations, but in ideal circuit theory the voltage across all branches exactly matches the source voltage. So the statement is true.