What term describes a circuit that does not allow electric current to flow?

What term describes a circuit that does not allow electric current to flow?

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

Answer: (A)

Current can flow only if there is a complete loop for electrons to travel. An open circuit has a break in the path—like a switch left open or a broken wire—so the circuit isn’t closed. With no closed path, electrons can’t move continuously, and the current stops. That’s why this term describes a circuit where no electric current can flow. In other scenarios, current still flows but for different reasons: a short circuit creates a low-resistance path that causes a surge of current, a series circuit has components in a single path for current, and a parallel circuit provides multiple paths for current.

Current can flow only if there is a complete loop for electrons to travel. An open circuit has a break in the path—like a switch left open or a broken wire—so the circuit isn’t closed. With no closed path, electrons can’t move continuously, and the current stops. That’s why this term describes a circuit where no electric current can flow. In other scenarios, current still flows but for different reasons: a short circuit creates a low-resistance path that causes a surge of current, a series circuit has components in a single path for current, and a parallel circuit provides multiple paths for current.