Electrons will flow from one point of a conductor to another only if there is a ______ between the two points.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → potential difference
Charges flow in a conductor only when there is a difference of electric pressure, called the potential difference, between its two points, just as water flows in a pipe only when there is a difference of pressure. A cell or battery keeps up this potential difference across a circuit; resistance only opposes the flow.