Which circuit characteristic allows current to take many paths, so a single path failure does not stop all devices?

Which circuit characteristic allows current to take many paths, so a single path failure does not stop all devices?

• A. Series circuit
• B. Open circuit
• C. Parallel circuit
• D. Short circuit

Answer: (C)

In a parallel circuit, current has multiple paths because each device is connected across the same voltage source in its own branch. This means the circuit can split the total current into several branch currents, and each branch can carry current independently of the others. If one path opens or a branch fails, the remaining branches still provide a path for current, so the other devices keep operating. The voltage across every branch is the same as the source, which is why devices on different branches operate without needing the same path for the entire current. In contrast, a series circuit uses only one path for current, so a break in that path stops current everywhere and all devices go out. An open circuit is simply a break that stops current completely. A short circuit creates a low-resistance path that can bypass devices, causing a surge in current, but it doesn’t describe the multi-path reliability characteristic of parallel wiring.

In a parallel circuit, current has multiple paths because each device is connected across the same voltage source in its own branch. This means the circuit can split the total current into several branch currents, and each branch can carry current independently of the others. If one path opens or a branch fails, the remaining branches still provide a path for current, so the other devices keep operating. The voltage across every branch is the same as the source, which is why devices on different branches operate without needing the same path for the entire current.

In contrast, a series circuit uses only one path for current, so a break in that path stops current everywhere and all devices go out. An open circuit is simply a break that stops current completely. A short circuit creates a low-resistance path that can bypass devices, causing a surge in current, but it doesn’t describe the multi-path reliability characteristic of parallel wiring.