Question

when does the current flows in a circuit
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Answer 1

Current only flows when a circuit is complete—when there are no gaps in it. In a complete circuit, the electrons flow from the negative terminal (connection) on the power source, through the connecting wires and components, such as bulbs, and back to the positive terminal.

Answer 2

When there is a conducter through which current can flow and also the switch must be on and a circuit must connected to a battery

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