The total amount of charge in coulombs that has entered a
Chapter 27, Problem 27.87(choose chapter or problem)
The total amount of charge in coulombs that has entered a wire at time t is given by the expression Q = 4t - t 2 , where t is in seconds and t 0. a. Find an expression for the current in the wire at time t. b. Graph I versus t for the interval 0 t 4 s
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