Switch

S_(1)

in Fig. 7.54 is closed at

t=0

, and switch

S_(2)

is closed at

t=

2s

. Calculate

i(t)

for all

t

. Find

i(1)

and

i(3)

.\ e-Text Main Menu | Textbook Table of Contents\ Problem Solving Workbook Cont\ 268\ PART I DCCircuits\ Answer:\

i(t)={(0,t

Switch S1 in Fig. 7.54 is closed at t=0, and switch S2 is closed at t= 2s. Calculate i(t) for all t. Find i(1) and i(3). e-Text Main Menu Textbook Table of Contents Problem Solving Work 268 PART I DC Circuits Answer: i(t)=0,2(1e9t),3.61.6e5(t2),t2i(1)=1.9997A,i(3)=3.589A. Figure 7.54 For Practice Prob. 7.13