In a parallel circuit with multiple paths for current, which statement correctly describes how the current through each path is determined?

In a parallel circuit with multiple paths for current, which statement correctly describes how the current through each path is determined?

• A. It flows the same through each path
• B. It is determined solely by the source voltage
• C. It depends on the resistance of that path
• D. It is independent of resistance

Answer: (C)

In a parallel circuit, the current through each path is determined by that path's resistance via Ohm's law. Each branch experiences the same source voltage, but how much current flows in that branch depends on how easily current can pass through its specific resistance. So I_path equals V_source divided by R_path. A branch with lower resistance will draw more current, while a higher-resistance branch draws less. This is why the current is not the same in every path and is not set solely by the source voltage or independent of resistance.

In a parallel circuit, the current through each path is determined by that path's resistance via Ohm's law. Each branch experiences the same source voltage, but how much current flows in that branch depends on how easily current can pass through its specific resistance. So I_path equals V_source divided by R_path. A branch with lower resistance will draw more current, while a higher-resistance branch draws less. This is why the current is not the same in every path and is not set solely by the source voltage or independent of resistance.