Electric charges flow in a circuit due to a difference in electric potential between the positive and negative terminals of the battery, represented by option c].
The movement of electric charges through a wire connected to a battery is caused by a difference in electric potential. Electric potential, or voltage, is the driving force that induces the flow of charges in a circuit. In a battery, there exists a potential difference between its positive and negative terminals. This potential difference creates an electric field that exerts a force on charged particles, compelling them to move. Electric charges move from the higher potential (positive terminal) to the lower potential (negative terminal), driven by the desire to equalize the potential difference.
Therefore, the correct answer is:
c] a difference in electric potential.
The probable question may be:
In the diagram, the arrow shows the movement of electric charges through a wire connected to a battery.
What causes the electric charges to flow from one end of the battery to the other?
a] a balance in electric potential
b] a balance in resistance
c] a difference in electric potential
d] a difference in resistance