Daniel Ceron Reyes - Lab Experiment Report #5 PDF

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Summary

This is the assignment for Lab 6, Part A...

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Lab Experiment Report #5

Author’s Name: Daniel Ceron Reyes Instructor’s name: ByungHa Lee Course & Section #: EMT1150 - OL93 Name of experiment: Measurements in parallel circuits Date of experiment: 10/25/2020

Table of Contents 1. Objectives 2. Materials 3. Procedures 4. Results 5. Conclusion and Discussion

Objectives & Materials In this laboratory exercise, we analyzed the characteristics of a circuit containing components in parallel formation. We observed how the components and overall system react when introduced to a voltage source & its influence on the current of said system.

Procedures Wire multiple circuits corresponding to each provided schematic onto the breadboard utilizing aforementioned materials.

Materials The materials utilized in this experiment are the following:

Number of Materials

Material

Number of Resistors

Nominal Resistor Value

Number of Resistors

Nominal Resistor Value

1

Wire Kit

1

47 Ω

1

220 Ω

1

Meter

1

470 Ω

1

330 Ω

1

Switch

1

4.7 KΩ

Data 6.1 1.) RBC

RCD

RAE

217 Ω

328 Ω

132 Ω

RAF

RBE

RCD

42 Ω

47 Ω

469 Ω

RAF

RBE

RCD

42 Ω

47 Ω

469 Ω

2.)

3.)

6.2 R1

R2

Total/Source

Voltage

5.02 V

5.02 V

5.02 V

Current

10.70 mA

1.1 mA

11.8 mA

Resistance

467 Ω

4.66 KΩ

424 Ω

R1

R2

Voltage

5.02 V

5.02 V

Current

10.70 mA

1.1 mA

6.2 Q/A As observed with the collected data, the total current is equivalent to the sum of the currents of each branch in this circuit. 6.3

R1

R2

R3

Total/Source

Voltage

5.02 V

5.02 V

5.02 V

5.02 V

Current

10.70 mA

1.1 mA

22.9 mA

34.7 mA

Resistance

470 Ω

4.7 KΩ

220 Ω

145. 29 Ω

R1

R2

R3

Voltage

5.02 V

5.02 V

5.02 V

Current

10.70 mA

1.1 mA

22.9 mA

6.4 1.) Breadboar d

R1

R2

R3

R4

Total/Sour ce

Voltage

9V

9V

9V

9V

9V

Current

10. 63 mA

1.1 mA

22.7 mA

106.4 mA

140.81 mA

Resistanc e

470 Ω

4.7 KΩ

220 Ω

1 KΩ

35. 508 Ω

Multism

R1

R2

R3

R4

Total/Sour ce

Voltage

9V

9V

9V

9V

9V

Current

10. 63 mA

1.1 mA

22.7 mA

106.4 mA

140.81 mA

Resistanc e

470 Ω

4.7 KΩ

220 Ω

1 KΩ

35. 508 Ω

2.)

3.) R1

R2

R3

R4

Voltage

9V

9V

9V

9V

Current

10. 63 mA

1.1 mA

22.7 mA

140.81 mA

Conclusion & Discussion 1. For Run 001: Does RBE + RCD = RAF? Why not? No, the total resistance (RAF) is not equivalent to the sum of the nominal resistance of the two resistors, due to the connected formation. For, the two resistors are in parallel formation as opposed to series because the two resistors share two common nodes. When two resistors are in parallel, the equivalent resistance would be the inverse of the inverse sums of the resistors. However, if these two resistors were placed in series formation the aforementioned equation would be true. 2. For Run 002: Compare RAF to the original value of 47 Ω. Does this agree? Explain. Is RAF larger or smaller than 47 Ω? The resistance value of RAF decreases due to the presence of additional resistance placed parallel to the previous resistors. Thus, the resistance would be smaller than 47 Ω. 3. For Run 003: Compare RAF to RBE and to RCD. Why doesn’t this value equal to 470 Ω? Although RBE & RCD have the same resistance of approximately 470 Ω, the total resistance, RAF measured to be 235 Ω. This occurs, because both resistors are parallel to one another thus the total resistance of the given circuit would be less than the lowest nominal resistance. What can you say about the resistors of the same value connected in parallel? Based on our observations one can determine that when two resistors of identical resistance are placed parallel to one another the total resistance is equivalent to the nominal resistance divide by the number of resistors. 4. For Run 002: What do you conclude is the relationship between the voltage of the source and the voltage of each branch of a parallel circuit? It has become quite apparent, that the voltage of each branch given that the branches are parallel to the given voltage source, is equivalent to one another.

5. What do you conclude is the relationship between the current supplied by the source and the current of each branch of a parallel circuit? The total current supplied by the source is equivalent to the sum of the currents flowing through each branch. 6. What will happen to the total resistance if more resistance is added in parallel? When adding additional resistors parallel to other resistive components the overall total resistance is reduced....