The current i (in ?A) in a DVD player circuit is given by the equation i = 4.0 - 7.0t where t is time (in ?s) and 0 ? t ? 30 ?s. If q(subscript 0) = 0 C, excluding the initial charge, for what value of t is q = 0 C?
Let me double check the problem just to make sure the entry I made was correct.
I think there is something missing. The result should be 0 C at t = 11 ?s.
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