Table D Series-Parallel Measured Value % Error Theoretical Value Equiv. Resistance Reg (N) Mu 552 measured Source Voltage Vs(V) Jov Current Through R: 14 (A) 0.36A 0.36A Current Through R2: 12(A) 0.23 A O.22A Current Through R3: 13(A) 0.15A Voltage Across R: V (V) 9.090 Voltage Across R2 & R3: V23 = V2 = V3 (V) 10.a1C = V + V23 voltage check Vs = V + V23 Jov = 12 + I3 %3D current check 4 = 12 + I3 רל .0

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How do I finish Table D?
Experiment 4: Resistors in Series and Par
46
Section D: The Series-Parallel circuit
Table D Series-Parallel
Theoretical Value
Measured Value
% Error
Equiv. Resistance
Reg (N)
Mu
Yu
552
measured
Source Voltage
Vs(V)
Current Through
R1: 1, (A)
0.36A
0.36A
Current Through
R2: 12(A)
0.23 A
0.22A
Current Through
R3: 13(A)
0.15A
Voltage Across
R1: V (V)
9.090
Voltage Across
R2 & R3:
V23 = V2 = V3 (V)
10.91
= V1 + V23
voltage check
Vs = V + V23
Jov
= I2 + I3
current check
4 = 12+ 13
0.37
Theoretical - Measured
percent error =
х 100
Theoretical
Attach Calculations
Transcribed Image Text:Experiment 4: Resistors in Series and Par 46 Section D: The Series-Parallel circuit Table D Series-Parallel Theoretical Value Measured Value % Error Equiv. Resistance Reg (N) Mu Yu 552 measured Source Voltage Vs(V) Current Through R1: 1, (A) 0.36A 0.36A Current Through R2: 12(A) 0.23 A 0.22A Current Through R3: 13(A) 0.15A Voltage Across R1: V (V) 9.090 Voltage Across R2 & R3: V23 = V2 = V3 (V) 10.91 = V1 + V23 voltage check Vs = V + V23 Jov = I2 + I3 current check 4 = 12+ 13 0.37 Theoretical - Measured percent error = х 100 Theoretical Attach Calculations
Section D: The Series-Parallel Circuit
1. Disconnect the previous circuit. On your circuit board, connect R, and Ra in parallel,
then connect this parallel combination of R2 and R3 in series with R, as shown in
Figure 1(c). Do not connect the battery yet!
2. Use one of your multimeters in the ohmmeter mode to measure the resistance of the
series-parallel combination of R,, R2 and R3. Record this measured equivalent resistance
in Table D on your data sheet.
3. Calculate the theoretical equivalent resistance Reg of this series-parallel arrangement of
R1, R2 and R3. On separate paper, show your work in calculating this equivalent
resistance. Record your theoretical value of Reg in Table D on your data sheet. (See the
Theory section for a discussion of how to calculate Reg:)
4. Now use this combination of R1, R, and Ra to construct the series-parallel circuit shown
in Figure 11, with the ammeter in series with the two batteries and R,. Measure and
42
Experiment 4: Resistors in Series and Parallel
Jou R, =a5n Ry=5Ur
I = I
25
R
R3=752
2ov Vs
75
R3
50
R2
Figure 11. Series-Parallel circuit setup
5. Remove the ammeter from the circuit and replace it with a wire. Disconnect one side of
R2 and place the ammeter in series with R2. Measure and record the measured value of
current I2. Remove the ammeter and reconnect resistor R2. Place the ammeter in series
with R3. Measure and record I3.
6. Using the other multimeter, measure and record the source voltage. Measure and record
measured values of V, and V23 = V2 = V3. Disconnect one of the leads to the battery so
you will not drain the battery while making the following calculations.
7. Calculate the theoretical values of I, = I, 12, 13, V, and V23 = V2 = V3. Record these in
in the theoretical column on Table D on your data sheet. Use your measured source
voltage and the theoretical values of the resistances listed in Table A for these
calculations. Show your work on separate paper! (See the Theory section for a
discussion of the proper way to carry out these calculations.)
8. Calculate and record percent errors between your theoretical predictions and your
measured results.
9. According to Kirchhoff's voltage rule, the sum V, + V23 should equal the source voltage
Vs. Calculate the sum of the measured voltages V, + V23 and record this sum in Table D.
Calculate the percent error between the sum of your measured voltages and your
measured source voltage.
10. According to Kirchhoff's current rule, the sum I2 + 13 should equal the total source
current I = 1,. Calculate the sum l2 + I3 of the measured currents through R2 and R3.
Record this sum in Table G. Calculate the percent difference between the value I2 + I3
and your measured source current I.
Cleaning up
When you are done, remove the wires and resistors from your circuit board. Place the circuit
board, wires and resistors in their bag(s). Roll up the leads the meters. Put all equipment
away neatly in its proper assigned location.
Transcribed Image Text:Section D: The Series-Parallel Circuit 1. Disconnect the previous circuit. On your circuit board, connect R, and Ra in parallel, then connect this parallel combination of R2 and R3 in series with R, as shown in Figure 1(c). Do not connect the battery yet! 2. Use one of your multimeters in the ohmmeter mode to measure the resistance of the series-parallel combination of R,, R2 and R3. Record this measured equivalent resistance in Table D on your data sheet. 3. Calculate the theoretical equivalent resistance Reg of this series-parallel arrangement of R1, R2 and R3. On separate paper, show your work in calculating this equivalent resistance. Record your theoretical value of Reg in Table D on your data sheet. (See the Theory section for a discussion of how to calculate Reg:) 4. Now use this combination of R1, R, and Ra to construct the series-parallel circuit shown in Figure 11, with the ammeter in series with the two batteries and R,. Measure and 42 Experiment 4: Resistors in Series and Parallel Jou R, =a5n Ry=5Ur I = I 25 R R3=752 2ov Vs 75 R3 50 R2 Figure 11. Series-Parallel circuit setup 5. Remove the ammeter from the circuit and replace it with a wire. Disconnect one side of R2 and place the ammeter in series with R2. Measure and record the measured value of current I2. Remove the ammeter and reconnect resistor R2. Place the ammeter in series with R3. Measure and record I3. 6. Using the other multimeter, measure and record the source voltage. Measure and record measured values of V, and V23 = V2 = V3. Disconnect one of the leads to the battery so you will not drain the battery while making the following calculations. 7. Calculate the theoretical values of I, = I, 12, 13, V, and V23 = V2 = V3. Record these in in the theoretical column on Table D on your data sheet. Use your measured source voltage and the theoretical values of the resistances listed in Table A for these calculations. Show your work on separate paper! (See the Theory section for a discussion of the proper way to carry out these calculations.) 8. Calculate and record percent errors between your theoretical predictions and your measured results. 9. According to Kirchhoff's voltage rule, the sum V, + V23 should equal the source voltage Vs. Calculate the sum of the measured voltages V, + V23 and record this sum in Table D. Calculate the percent error between the sum of your measured voltages and your measured source voltage. 10. According to Kirchhoff's current rule, the sum I2 + 13 should equal the total source current I = 1,. Calculate the sum l2 + I3 of the measured currents through R2 and R3. Record this sum in Table G. Calculate the percent difference between the value I2 + I3 and your measured source current I. Cleaning up When you are done, remove the wires and resistors from your circuit board. Place the circuit board, wires and resistors in their bag(s). Roll up the leads the meters. Put all equipment away neatly in its proper assigned location.
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