Question: I really need some help on a physics lab. The lab is about electrical circuits and Kirchhoff's Law on voltage and current. I am putting
I really need some help on a physics lab.
The lab is about electrical circuits and Kirchhoff's Law on voltage and current. I am putting my data and what is required for analysis. The lab was done once for resistors in parallel and then for those in series.




PART A. RESISTORS IN SERIES 1. From your data for the series circuit, compare the three voltages you measured: What simple relationship do you find? 2. Calculate the percent error for the sum of the voltages though RI and R2 using the measured voltage across both resistors as the accepted value. 3. Compare the three currents you measured through each resistor and through the entire circuit. What simple relation do you find? How would you interpret this result in terms of the Law of Conservation of Charge? 4. Calculate the percent errors for the currents between R , and R 2 and leaving R 2 using the measured current entering Ri as the accepted value. 5. The manufacturer claims that the multimeter has 0.5% accuracy. Compare the manufacturer's stated accuracy with the calculated % error and explain whether either of the results verify Kirchhoff's laws. PART B. RESISTORS IN PARALLEL 6. Compare the voltage across the whole circuit with the voltage across each resistor individually. What simple relationship do you find? 7. What relationship do you find between the current through the whole circuit and the current through each resistor? How do you interpret this in terms of the law of conservation of charge? 8. Calculate the percent error for the sum of the currents though R, and R, using the measured current through the entire circuit as the accepted value 9. The manufacturer claims that the multimeter has 0.5% accuracy. Compare the manufacturer's stated accuracy with the calculated % error and explain whether either of the results verify Kirchhoff's laws.-RESISTORS IN PARALLEL Position Voltage (volts) Current (A) Across R1 8.53 Across R2 8.50 Across R1+R2 8.52 Entering R1 0.0284 Between R1 and R2 0.0125 Leaving R2 0.0124-RESISTORS IN SERIES Position Voltage (volts) Current (A) Across R1 2.67 Across R2 5.95 Across R1+R2 8.63 Entering R1 0.0257A Between R1 and R2 0.0258A Leaving R2 0.260AACCEPTED VALUES The accepted values for the circuit with resistors in series (part A) is that the current at the end of the circuit is equal to the current at the beginning (),, = /, = /,) and that the total voltage on the circuit is equal to the sum of the voltages across the resistors (I.= +! ). The accepted values for the circuit with resistors in parallel (part B) is that the initial voltage equal to the voltages across either resistor (V..,, = \\, = )) and that the total current on the circuit is equal to the sum of the currents through each resistor (I.,. =I, +I)
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