ANALYSIS 1. Examine the results of Part I. What is the relationship between the three voltage readings: V₁, V2, and VTOT? 2. Using the measurements you made above and your knowledge of Ohm's law, calculate the equivalent resistance (Req) of the circuit for each of the three series circuits you tested. 3. Study the equivalent resistance readings for the series circuits. Can you come up with a rule for the equivalent resistance (Req) of a series circuit with two resistors? 4. 5. Using the measurements you have made above and your knowledge of Ohm's law, calculate the equivalent resistance (Req) of the circuit for each of the three parallel circuits you tested. For each of the three series circuits, compare the experimental results with the resistance calculated using your rule. In evaluating your results, consider the tolerance of each resistor by using the minimum and maximum values in your calculations. 6. Study the equivalent resistance readings for the parallel circuits. Devise a rule for the equivalent resistance of a parallel circuit of two resistors. 7. 8. Examine the results of Part II. What do you notice about the relationship between the three voltage readings V₁, V2, and VTOT in parallel circuits? What did you discover about the current flow in a series circuit in Part III? Physics with Vernier periment 23 9. What did you discover about the current flow in a parallel circuit in Part III? 23-1 10. If the two measured currents in your parallel circuit were not the same, which resistor had the larger current going through it? Why?

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter7: Parallel Circuits
Section: Chapter Questions
Problem 3PP: Using the rules for parallel circuits and Ohmslaw, solve for the missing values....
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ANALYSIS
1. Examine the results of Part I. What is the relationship between the three voltage readings: V₁,
V2, and VTOT?
2. Using the measurements you made above and your knowledge of Ohm's law, calculate the
equivalent resistance (Req) of the circuit for each of the three series circuits you tested.
3. Study the equivalent resistance readings for the series circuits. Can you come up with a rule
for the equivalent resistance (Req) of a series circuit with two resistors?
4. For each of the three series circuits, compare the experimental results with the resistance
calculated using your rule. In evaluating your results, consider the tolerance of each resistor
by using the minimum and maximum values in your calculations.
5. Using the measurements you have made above and your knowledge of Ohm's law, calculate
the equivalent resistance (Req) of the circuit for each of the three parallel circuits you tested.
6. Study the equivalent resistance readings for the parallel circuits. Devise a rule for the
equivalent resistance of a parallel circuit of two resistors.
7. Examine the results of Part II. What do you notice about the relationship between the three
voltage readings V₁, V2, and VTor in parallel circuits?
8. What did you discover about the current flow in a series circuit in Part III?
Physics with Vernier
periment 23
9. What did you discover about the current flow in a parallel circuit in Part III?
23-1
10. If the two measured currents in your parallel circuit were not the same, which resistor had the
larger current going through it? Why?
Transcribed Image Text:ANALYSIS 1. Examine the results of Part I. What is the relationship between the three voltage readings: V₁, V2, and VTOT? 2. Using the measurements you made above and your knowledge of Ohm's law, calculate the equivalent resistance (Req) of the circuit for each of the three series circuits you tested. 3. Study the equivalent resistance readings for the series circuits. Can you come up with a rule for the equivalent resistance (Req) of a series circuit with two resistors? 4. For each of the three series circuits, compare the experimental results with the resistance calculated using your rule. In evaluating your results, consider the tolerance of each resistor by using the minimum and maximum values in your calculations. 5. Using the measurements you have made above and your knowledge of Ohm's law, calculate the equivalent resistance (Req) of the circuit for each of the three parallel circuits you tested. 6. Study the equivalent resistance readings for the parallel circuits. Devise a rule for the equivalent resistance of a parallel circuit of two resistors. 7. Examine the results of Part II. What do you notice about the relationship between the three voltage readings V₁, V2, and VTor in parallel circuits? 8. What did you discover about the current flow in a series circuit in Part III? Physics with Vernier periment 23 9. What did you discover about the current flow in a parallel circuit in Part III? 23-1 10. If the two measured currents in your parallel circuit were not the same, which resistor had the larger current going through it? Why?
DATA TABLE
Part I Series circuits
1
2
3
Part II Parallel circuits
R₁
(Q)
151
2
3
R₁
(2)
10
10
51
Part III Currents
R₂
(Q)
10
51
51
R₂
(2)
51
51 68
68
68
1
2
R₁
(22)
10
51
1
V₁
V₂
(A)
(V) (V)
0.1312
1.365
0.0448
0.451
0.0249 1.461
1
(A)
0.1115
0.0957
0.0816 2.655
R₂
(Q)
51
68
1.095
2.410
1.470
Req
(22)
/1
(A)
0.0505
0.0601
5
8.4
V₁
V₂
Req
(V) (V)
(Q)
2.834
2.838
25.5
2.778 2.693 29.1
2.770
34
25.5
12
(A)
0.0521
0.0439
VTOT
(V)
2.607
2.917
3.020
VTOT
(V)
2.836
2.745
2.654
Transcribed Image Text:DATA TABLE Part I Series circuits 1 2 3 Part II Parallel circuits R₁ (Q) 151 2 3 R₁ (2) 10 10 51 Part III Currents R₂ (Q) 10 51 51 R₂ (2) 51 51 68 68 68 1 2 R₁ (22) 10 51 1 V₁ V₂ (A) (V) (V) 0.1312 1.365 0.0448 0.451 0.0249 1.461 1 (A) 0.1115 0.0957 0.0816 2.655 R₂ (Q) 51 68 1.095 2.410 1.470 Req (22) /1 (A) 0.0505 0.0601 5 8.4 V₁ V₂ Req (V) (V) (Q) 2.834 2.838 25.5 2.778 2.693 29.1 2.770 34 25.5 12 (A) 0.0521 0.0439 VTOT (V) 2.607 2.917 3.020 VTOT (V) 2.836 2.745 2.654
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