PART A – Resistors in 10 KΩ Range 1. Pick three different fixed resistors in the 10 kΩ range and combine with R3 = 5 kΩ
Posted: Sat Jul 02, 2022 7:38 pm
PART A –
Resistors in 10 KΩ Range 1. Pick three different fixed resistorsin the 10 kΩ range and combine with R3 = 5 kΩ resistor (in place ofthe potentiometer) and build a Wheatstone bridge circuit on yourscreen. Use the 12 volt lab power supply. Attach the ammeter asindicated and record the value of the current. R1 = _______ R2=______ R3 = 5 kΩ R4 = _______ Current = __________ Place avoltmeter across the bridge. What is its value? Attach ascreen shot of your circuit.
2. Now adjust the potentiometer resister R3 until the ammeterreads zero current. Record the value of the resistance R3. R1 =_______ R2 =______ R3 = 5 kΩ R4 = _______ Current = __________Place a voltmeter across the bridge. What is its value?________________ Attach a screen shot of your circuit.
3. Use equation (4) to obtain the value of your “unknown”resistance R4 using the value for the variable resistor, R3 youobtained in PART A. Does the value you obtain for R4 using equation(4) agree with the value you obtained from the color code on R4?(draw the color code and indicate the values in your answer, i.e.draw the resistor).
Resistors in 10 KΩ Range 1. Pick three different fixed resistorsin the 10 kΩ range and combine with R3 = 5 kΩ resistor (in place ofthe potentiometer) and build a Wheatstone bridge circuit on yourscreen. Use the 12 volt lab power supply. Attach the ammeter asindicated and record the value of the current. R1 = _______ R2=______ R3 = 5 kΩ R4 = _______ Current = __________ Place avoltmeter across the bridge. What is its value? Attach ascreen shot of your circuit.
2. Now adjust the potentiometer resister R3 until the ammeterreads zero current. Record the value of the resistance R3. R1 =_______ R2 =______ R3 = 5 kΩ R4 = _______ Current = __________Place a voltmeter across the bridge. What is its value?________________ Attach a screen shot of your circuit.
3. Use equation (4) to obtain the value of your “unknown”resistance R4 using the value for the variable resistor, R3 youobtained in PART A. Does the value you obtain for R4 using equation(4) agree with the value you obtained from the color code on R4?(draw the color code and indicate the values in your answer, i.e.draw the resistor).