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Definition of 1 ampere

1 Ampere is the unit of electric current that is equal to the flow of one Coulomb per second.

Simplify 64^1/2

(64)<sup>1/2</sup> = (8×8)<sup>1/2</sup> = (8<sup>2</sup>)<sup>1/2</sup> = 8<sup>1</sup> = 8