In an electric circuit, what produces the potential difference needed for charge flow?

Question

In an electric circuit, what produces the potential difference needed for charge flow? — Exam MCQ

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C. A battery consisting of one or more electric cells — The correct choice is A battery consisting of one or more electric cells. It follows from the basic electrical relationship between voltage, current, resistance, charge or electrical energy described in the question.

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A. Connecting wires alone between two points

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B. The resistance of the wire to current

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D. The gravitational pull on electrons

In an electric circuit, what produces the potential difference needed for charge flow?

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