Unformatted text preview: tor of about 50 ohms and accurately measure its resistance using a DMM.
2. Setup the circuit shown in Fig 1. Wire a "good" 6 volt battery, resistor, and a switch in a series circuit.
3. Measure the "open circuit" voltage E of the battery. 4. Close the switch and measure the voltage Vab of the battery.
5. Calculate the current Mlowing through the circuit. 6. Repeat the measurements using a "bad" 6 volt battery. 7. Data Analysis and Results
7.1. Part #1
Present your results as follows: 1. Draw a schematic diagram of each circuit. 2. On each diagram, label all currents and voltage drops.
3. Present a table comparing theoretically and experimentally determined currents and voltage drops along with a calculation of the percent discrepancy.
Circuit #1 Resistance w/
DMM (ohms) Predicted
Current (A) Predicted
Voltage (V) Measured
Current (A) Measured
Voltage (V) Resistance w/
DMM (ohms) Predicted
Current (A) Predicted
Voltage (V) Measured
Current (A) Measured
Voltage (V) Resistor 1
Resistor 2
Resistor 3
Resistor 4
E f f e c t i v e Resistor Circuit #2
Resistor 1
Resistor 2
Resistor 3 PHY 2141/2181 EXP # 4 4 Circuit #2 Resistance w/
DMM (ohms) Predicted
Current (A) Predicted
Voltage (V) Measured
Current (A) Measured
Voltage (V) Resistor 4
E f f e c t i v e Resistor 7.2. Part #2
1. Draw a schematic diagram of your circuit and write down an equation stating Kirchoff's "loop" rule.
2. Solve the Kirchoff's loop rule equation for the terminal voltage .
3. State which conditions are necessary to have Vab=E, and relate this to the "open circuit" voltage of the battery.
4. Assuming that the "open circuit" voltage of the battery is equal to E, use the...
View
Full
Document
This note was uploaded on 05/15/2013 for the course PHY 2170 taught by Professor Blank during the Fall '08 term at Wayne State University.
 Fall '08
 BLANK
 Physics, Resistance

Click to edit the document details