network theory-circuit analysis

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Joined Apr 10, 2015
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what would be the value of Vc(zero minus/plus) ie Vc(0-)=Vc(0+) . Is it [3*48/(48+100) =]97.30 or [3*48=]144 . I cant understand why the answer 97.30 is given in the book Hayt and Kimmerly 8th edison; since the source is a current source- not a voltage source, how the voltage division formula is applied here.
 
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