The electrical analogy to height in a fluid flow system is the resistance of the resistors. the potential of the battery. the capacitance of the capacitor. the length of the wires in the circuit.

the potential of the battery.

Explanation:

As we know that as we apply the potential difference across a given resistance then in that case current will flow through that resistance.

The potential difference across the resistance will make one end of the resistance at lower potential while other end is at higher potential.

Here due to this potential difference current will flow through it.

This phenomenon is same as the phenomenon of flow of liquid which flows due to the pressure difference in which fluid will flow through the given system if there exist a pressure difference and also fluid will flow from higher pressure to lower pressure.

so here correct answer will be

the potential of the battery.

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