Page 82 - LAPLACE TRANSFORM
P. 82
4 −4
I(s) = +
s (s + 5)
( ) = − − s
= 0.1 ;
( ) = 4 − 4e −5t Amp
= 4 − 4e −5(0.1)
= 4 − 2.426
= .
VR (t) = ( )
= (1.574 ) (15)
= 23.61 Volts
i(t) = 4 − 4e −5t Amp ( ) ( )
= = (a)
( )
= (0) − (4)( −5)( −5 ) ( ) ( − )
= = (−a) −
= 20 −5 ( ) ( )
= = (5)
( ) ( − ) −
= = (−5)
= 20( −5(0.1) )
= .
VL (t) = L ( )
= (3) (12.13)
= 36.39 Volts
69
