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What maintains the potential difference across a conductor connected in a circuit?

Question
What maintains the potential difference across a conductor connected in a circuit?
The resistor itself
A cell or battery
The ammeter
The connecting wires
Answer
A cell or battery
Detailed Explanation
A cell or battery, through its internal chemical reactions, maintains the potential difference that drives current.
What is the SI unit of electric current? Science · Electricity Electric current is defined as the rate of flow of: Science · Electricity The direction of conventional electric current in a circuit is taken as the direction of flow of: Science · Electricity One coulomb of charge is equivalent to the charge of nearly: Science · Electricity

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