Current passing through a wire as function of time is given as I ( t ) = 0.02 t + 0.01 A . The charge that will flow through the wire from t = 1 s to t = 2 s is :

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​ q = ∫ idt ∫ 0 2 ​ ( 0.02 t + 0.01 ) dt ​ ​ q = [ 0.02 2 t 2 ​ + 0.01 t ] 1 2 ​ = 0.01 ( 3 ) + 0.01 ( 1 ) = 0.04 C ​

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