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August 1, 2015

Homework Help: physics

Posted by priya on Thursday, September 5, 2013 at 2:37pm.

The quantity of charge q (in coulombs) that has passed through a surface of area 2.08 cm2 varies with time according to the equation q = 4t3 + 5t + 6, where t is in seconds.
(a) What is the instantaneous current through the surface at t = 1.08 s?

(b) What is the value of the current density?

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