0195136047.pdf

PROBLEMS 267

−

+ vo

i 2

i 1 i

i

v 1

2 V

0

5 V

−5 V

12

t, ms

3

0

VA

C = 0.5 μF

(a)

(b)

S

R 1 = 5 kΩ

v 2

R 2 = 1 kΩ

v 1

v 2

Figure P5.4.20(a)Circuit.(b)Waveforms

ofv 1 andv 2.

+

−

1 Ω

1 Ω
2 Ω

+

−

10 V

I

Figure P5.4.25