Experiment3 (1)

# Experiment3 (1) - Part1a Objectives 1 2 3 4 fi

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Part 1a: - Objectives: 1. To let the student be able to find currents and voltages  in more complicated resistive circuits. 2. To verify and use KVL and KCL. 3. To introduce the student to the “WYE-DELTA”  transformations and vice versa. 4. To use these transformations to simplify circuits and  find currents and voltages. - Theory: 1. R1=R1=1.2k  2. R3=R4=2.2k  3. R5=0.47k  4. Vsupply=10 V 6. “Wye-Delta” and “Delta-Wye” transformations.

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7. Ohm’s Law. 8. The circuit used in this part is drawn below: - Measurements: Using the multimeter the actual values of the resistors  were as follow: 1. R1=1.181k  2. R2=1.183k  3. R3=2.184k  4. R4=2.175k  5. R5=0.473k
- Calculations: - Results: The results of this part are displayed in the table below: Data/Method Tina Multimeter Calculations I_R1(0,1) 4.23 mA 3.90  mA I_R2(1,2) 1.99 mA 1.858 mA I_R3(0,2) 3.39 mA 3.20 mA  V_R1(0,1) 5.08 V 4.81 V V_R2(1,2) 2.39 V 2.259 V V_R3(0,2) 7.47 V 7.34 V V_V1 10 V 9.52 V 9.52 V - Discussion: It is obvious that there are some very simple differences in  the results due to degrees of accuracy when using the

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multimeter rather than other human errors, and using  “Tina” the theoretical values of resistors are used. Also,  the main reason for that is the difference in voltages
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## This note was uploaded on 12/18/2010 for the course INDUSTRIAL 221 taught by Professor Abdullaabdulla during the Spring '10 term at German University in Cairo.

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Experiment3 (1) - Part1a Objectives 1 2 3 4 fi

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