Question

higher voltage can be obtained by combining a number cells in series. give reason​

Answer 1

Answer:

The number of electrons is not the same as potential difference. It is a bit more complex than that. It is about the electrical field that is created by the electrolytes, and the electrons themselves. This effect is more complex than I can write down in a Quora answer, but let me try.

A battery creates (with some chemical wizardry) a potential difference between its anode and cathode. They are split in the middle, so flow can happen only with an external circuitry. The Anode is 1.5 V higher that the cathode. When you put two batteries in series, the touching parts in the middle become the same potential i.e 1.5V higher than one side, 1.5V lower than the other. Hence the total difference between the edges is now 3V.

A working analogy is that for a waterflow, your number of flowing electrons are the volume of the water that is flowing, and your voltage is the height of your fall. From the same height, you can have more or less water flowing.

Putting two batteries in series is, putting a waterfall on top of another waterfall. The same amount of water passes through them but the total height of the fall is now twice.

Explanation:

Answer 2

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