0195136047.pdf

PROBLEMS 63

3 V

iy vCF

iz ix

+

−

+

−

+

−+

+−vAB

−1 V

−2 V

+−

−

1 V

+

−

F

A

B

C

D

H

v =?

i =?

G

6 A

E

−

+

4 V

3 A 2 A

S

Figure P1.3.3

2 H^10 Ω

0.1 F

1 H

i 5

i 3 i^4 i 1

i 2

v 3 v 1

v 2

+

+−

+ v^4 −

−

+

−

D

C

B

A

Figure P1.3.4

2 Ω

4 Ω

1 Ω 3 Ω

I

+

−

+

−

DC

A B

V 1 V 2

Figure P1.3.5

I 1 I 2 I 3

R 1 V

+

−

IA R 2 R 3 IB

Figure P1.3.6

1.3.9Consider the circuit shown in Figure P1.3.9.

(a) Givenv(t)= 10 e−tV, find the current source

is(t) needed.

(b) Giveni(t)= 10 e−tA, find the voltage source

vs(t) needed.

1.3.10An operational amplifier stage is typically repre-
sented by the circuit of Figure P1.3.10. For the
values given, determineVoutand the power sup-
plied by the 2.5-V source.
1.4.1A voltmeter with a full scale of 100 V has a
probable error of 0.1% of full scale. When this

meter is employed to measure 100 V, find the

percent of probable error that can exist.

1.4.2A current of 65 A is measured with an analog

ammeter having a probable error of± 0 .5% of

full scale of 100 A. Find the maximum probable

percentage error in the measurement.

1.4.3Error specifications on a 10-A digital ammeter

are given as 0.07% of the reading, 0.05% of full

scale, 0.005% of the reading per degree Celsius,

and 0.002% of full scale per degree Celsius. The

10-A analog meter error specification is given as

0.5% of full scale and 0.001% of the reading per