Basic Circuit BackgroundsⅠDepartmentYearStudent IDClassTeamName전기전자공학과220081422252강민표Report Topic : Basic Circuit BackgroundsⅠ?Result of Experiment6-1. current, voltageA. ammeter and voltage metertable 1-1. table 1-2.[]multiplierV[DC]00500.571001.11K5.985K9.910K10.920K11.4640K11.5860K11.76100K11.9[]multiplierV[AC]00500.601001.161K6.415K10.6010K11.6920K12.2740K12.5660K12.66100K12.74B. Serial, parallel circuit.fig 1-6. serial circuitfig 1-7. parallel circuittable 1-3.connectioncurrent for each nodevoltage for each resistorserialI10.20mAV12.02I20.20mAI30.19mAV24.01I40.20mAV310.04parallelI11.61mAV116.07I20.80mAI30.32mAV216.07I42.73mAV316.07C. Resistance metertable 1-4.fixed resistor012345678910∞resistor[K]0133.344.76.38102050∞current measured by ammeter[mA]0.490.450.380.360.340.330.300.270.240.160.070fig 1-8. circuit of 1/3.2 resistance meter(We consist 1/3.2 resistance because of limited type of resistances)table 1-5.resistance measured by tester50k4.7k2038resistance meter[mA]0.070.330.16 value246fig 1-10.experimental valuecalculated valuevoltage source[V]5.0V5Vcurrent source [mA]3.08mA3mAV(R1)4.99V5VI(R1)4.96mA5mAV(R2)4.99V5VI(R2)4.96mA5mAfig 1-11. basic circuit(1) for measuretable 1-11.experimental valuecalculated valuevoltage source[V]5V5VV(R1)2.01V2VI(R1)2.03mA2mAV(R2)5.01V5VI(R2)5.02mA5mAtable 1-12.voltage [V]experimental valuecalculated valueR1 1.0 [KΩ]0.0810.078[V]R2 3.0 [KΩ]0.2310.234[V]R3 3.9 [KΩ]0.3110.312[V]R4 8.0 [KΩ]0.6251.56[V]R5 1.9 [KΩ]0.3090.312[V]R6 3.9 [KΩ]0.6310.624[V]R7 10.0 [KΩ]1.551.56[V]R8 6.3 [KΩ]1.881.96[V]R9 4.7 [KΩ]1.531.46[V]fig 1-12. basic circuit for measure(2) fig 1-13. basic circuit for measure(3)6-3. SuperpositionA. Principle of superpositionfig 1-14. circuit all Vdc is appliedfig 1-15. circuit each Vdc is appliedtable 1-13.branch currenttheoretical value [mA]measured value [mA]I111.01I244.04I355.03I1'44.02I2'22.01I3'22.02I1''33.01I2''66.04I3''33.04?Analysis① Analyzing the table freom 1-1 to 1-7, explain why there are some differences urrent path.(a) )And also, since Voltmeters are always connected in parallel with the component or components under test, any current through the voltmeter will contribute to the overall current in the tested circuit, potentially affecting the voltage being measured. And then the difference between theoretical values and experimental values is found. The higher the resistance of Ammter, the lower the differences between them.(b) There is also internal resistance in conducting wire. Despite resistance of wire is small, it effects measuring accurate value. Thus, we can lower the differences by control the length of wire to be short.(c) Experimenter could see figure mistakenly. And unskillful operation cause error in the experiment.(d) Environment in laboratory(like humidity, temperature, etc) can affect in measure.② Verify Ohm's Law in serial/parallel connection of resistors.(z) )Ohm's law is. So if the current is fixed, we expect that resistance and Current are directly proportional. In exactly, explain the reason.We couldn't get accurate value in almost experiments. The error also happen due to the answer of Question 1. Error could result in a more complicated circuit is increased.④ Verify the principle of superposition from the table 1-13.)Superposition Theorem is to eliminate all but one source of power within a network at a time, using series/parallel analysis to determine voltage drops (and/or currents) within the modified network for each power source separately. And the Superposition Theorem states that a circuit can be analyzed with only one source of power at a time, the corresponding component voltages and currents algebraically added to find out what they'll do with all power sources in effect. In table 1-13, we check, is the results of nested betweenand,,in each value. So we verify superposition theorem in this experiment. And we must consider direction of current.⑤ If there are some differences between calculated values and experimental values on table 114,. So when we nest the result of fig 1-15(a) and (b), we can find the principle of superposition is correct.⑦ If the voltage across is different from the calculated value, explain the reason.We find that there is a gap between theoretical values and experimental values, calculating R3's voltage of each experiment. Theoretical values of each R3's voltage are 5V, 2V and 3V in sequence. However, experimental values of each R3's voltage are 5.02V, 2.02V and 3.04V in sequence. As described above, this error occurs in the experiments was irresistible. However, through the comparison of theoretical and experimental values ??fit well the theory was confirmed.? DiscussionThrough this experiment, the basic knowledge required for basic experiment was again confirmed. Understanding the usual theory, but with this opportunity to see the result coming out this theory was actually how it works by Kirchhoff's current law, Kirchhoff's voltage law, Principle of superposition. In addition, because thisl
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