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How Voltage and Current are Related to Each Other

To better grasp the relationship between voltage and current, let’s look at that other instance.

Imagine that a water pump station  is situated in the middle of a river and is filled with water. The water tower now has sufficient potential energy to perform work. A pipe is linked to the tower’s left and the pump is attached to its right side to finish the circuit.


The pressure created by this pump forces water out of the pipe and onto the water tower. The potential energy of the tower doesn’t change as the pipe’s width is increased, but the amount of water flowing out of the pipe does. The potential energy does not change even if we take out the pipe.

In this instance, water escaping from the pipe is the current and pressure is the voltage. We have observed that the voltage of the remote cells does not change whether they are connected to the circuit or are left unattended.

Points to Keep in Mind V – I

The circuit’s ability to drive electrons in a certain direction is precisely proportional to the current that is flowing through it.

In other words, the more pressure there is, the more water or current flows through the circuit, and vice versa.

The voltage rises with an increase in the potential difference between the two places of the pipe through which the water is flowing. This is so since the voltage measures the difference in potential between two places.

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