Question 998701
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from Wikipedia (<A HREF=https://en.wikipedia.org/wiki/Ampere>this article)</A>


The SI unit of charge, the coulomb, is the quantity of electricity carried in 1 second by a current of 1 ampere.

Conversely, a current of one ampere is one coulomb of charge going past a given point per second:


1 A = 1 {{{Q/s}}}.


In general, charge Q is determined by steady current I flowing for a time t as Q = It.
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Based on it, the charge Q is


Q = 2.5 A * 90 seconds = 225 coulomb.


(90 seconds = 1.5 minute).