A current of 1.8 A delivers 2.5 C of charge.How much time was required?

Use the relationship current = charge ÷ time, so time = charge ÷ current. Substituting the values gives 2.5 C ÷ 1.8 A ≈ 1.39 s, which rounds to 1.4 s. The correct choice is C) 1.4 s.

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