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Current is caused due to movement of electrical charge - the flow of electrons through the electronic circuit. Current is measured in AMPERES (AMPS, A or I).
Electric current is the amount of electrons, or charge, moving past a point every second.
Therefore amount of flow of current depends upon flow (speed) of electrons
Therefore for every amp, there are 6.25x10^18 electrons moving through a point every second or A flow of electrons forced into motion by voltage is known as current.
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