Page 148

CHAP. 7]

FIRST-ORDER CIRCUITS

137

Fig. 7-13

Fig. 7-14 For t < 0;

i ¼ 2 A and v ¼ 0

For t > 0;

i ¼ 4  2e30t

ðAÞ and v ¼ L

di ¼ 6e30t dt

ðVÞ

and plotted in Figs. 7-15(d) and (e).

EXAMPLE 7.10

Find i and v for t ¼ 0 and t ¼ 0þ in the circuit of Fig. 7-16, given R ¼ 5 , L ¼ 10 mH, and  5 V for t < 0 vs ¼ 5 sin !t ðVÞ for t > 0

Mahmood_Nahvi_eBook_Schaum_s_Outlines_Theory_An  
Mahmood_Nahvi_eBook_Schaum_s_Outlines_Theory_An  
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