2.3 Current cont.

• Current is a measure of the rate of flow of (net positive) charge per unit time

• 1 Ampere = 1 Coulomb per second

• See next slide = Figure 2.10 (p. 17) for a graphical illustration of the charge/current relationship

(2.4)

(2.5)

Units: i(t) is in Amperes when q(t) is in Coulombs

and t is in seconds

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