Question: 9 . 2 A current source in a linear circuit has is = 1 5 cos ( 2 5 t + 2 5 ) A

9.2 A current source in a linear circuit has is =15 cos(25 t +25) A 1.(a) What is the amplitude of the current? 2.(b) What is the angular frequency? 3.(c) Find the frequency of the current. 4.(d) Calculate is at t =2 ms.

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