Final answer:
Electric charges flow when the circuit is closed, enabling the continuous circulation of charge.
Explanation:
Electric charges will flow when the circuit is closed. This is because a closed circuit allows for the movement of charge to continuously circulate through the system, powering devices like lamps in the process. When the circuit is complete, charge can flow smoothly, but if it is open or incomplete, charge cannot flow effectively and will build up, hindering the flow of electricity.
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