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I mean why we say primary battery has 5 volt...why we dont say it has 5 amps

why we say for primary batterys power ....its volt.........but in elecrcity wires we say the power is amp

Volts and amps are different.Imagine a circuit is like a waterfall. The voltage is the height of the waterfall and the amperage is how much water is going down it per second.

in electricity wires we say the power is amp