Experiment 1
D. C. Circuits
Purpose:  To become familiar with Ohm’s Law, Kirchoff’s laws and their use in circuit analysis

I. Series Circuits
Wire the circuit shown in Fig. 1.
Measure and record I, VR, VR2 and the supply voltage.  Calculate Req.

Data for Part I
R1   987 ?
R2  1988 ?
VR1 5.06 Volts
VR2 10.15 Volts
VS  15.23 Volts
I  5.1 mA

II. Parallel Circuits
Set up the circuit shown in Fig. 2
Measure and record I1, I2, I3, R1, R2, V1, V2, and Vs.

Data for Part II
I1  15.31 mA
I2  7.62 mA
I3  7.62 mA
R1  987 ?
R2  1988 ?
V1  15.16 V
V2  15.16 V
Vs  15.16 V
Req  660 ?

I1 calculated.0229 A
 

III. Complex Circuits
Wire the circuit shown in Fig. 3.
Measure and record Vs1, Vs2, VR1, VR2, VR3, Is1, Is2, I1, I2, I3, R1, R2, R3.
Vs1  15.16 V
Vs2  4.99 V
VR1 0.46 V
VR2 5.47 V
VR3 9.67 V
Is1  3.23 mA
Is2  0.47 mA
I1  0.47 mA
I2  2.76 mA
I3  3.05 mA
R1  987 ?
R2  1988 ?
R3  2965 ?
 
 

Lab 1: DC Circuits