If a circuit is open, which of the following is true?

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Multiple Choice

If a circuit is open, which of the following is true?

Explanation:
An open circuit has a break in the conducting path, so electrons can’t complete a loop. Current needs a closed path to flow, and without it the current is zero, even if a voltage source is connected. The voltage across the open gap can be nonzero—up to the source voltage—because there’s nothing present to drive current through. A short circuit is the opposite situation: a closed path with very low resistance, which allows a large current to flow. So the true statement is that no current flows in an open circuit.

An open circuit has a break in the conducting path, so electrons can’t complete a loop. Current needs a closed path to flow, and without it the current is zero, even if a voltage source is connected. The voltage across the open gap can be nonzero—up to the source voltage—because there’s nothing present to drive current through. A short circuit is the opposite situation: a closed path with very low resistance, which allows a large current to flow. So the true statement is that no current flows in an open circuit.

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