Solved by verified expert:I need the calculation and conclusion parts to be completed for the experiment attached.
lab_5_ac.docx
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1
PART 2: inductors
Objective:
We verified that the resistance of a resistor is independent of frequencies in
the audio range as the first part of this experiment. In this second part we will
verify that the reactance of an inductor increases linearly with increase in
frequency. Then reactance of a capacitor decreases non-linearly with increase in
frequency.
Diagram:
Equipment needed:
➢ Resistor 100Ω.
➢ Inductor 10 mH.
➢ DMM, oscilloscope, Signal generator, Audio oscillator, Frequency counter.
Procedure:
✓
✓
✓
✓
✓
Select the components and measure the value of inductor and resistor.
Resistor -99.562Ω
Inductor – 10 mH
construct the circuit shown in figure 5.2
Connect the oscilloscope across the resistor and set the voltage across the inductor 4V
measure the voltage magnitude.
✓ Change the value of frequency and then repeat the procedure.
✓ Note the value in table 5.2. Now compare calculated value and measured value
2
Calculations:
1. Calculate the reactance XL (magnitude only) at each frequency and insert the values
in the table under the heading XL measured
2. Calculate the reactance at each frequency of table 5.2 using the nameplate value of
inductance (10 mH) and complete the table.
3. How do the measured and calculated values of XL compare.
Table 5.2
Frequency VL(p-p) VRs(p-p)
(Hz)
1 KHz
3 KHz
4 KHz
5 KHz
7 KHz
10 KHz
4V
4V
4V
4V
4V
4V
Conclusion:
0.776 V
0.695 V
0.5128 V
0.4169 V
0.3033 V
0.2095 V
I(p-p) = VRs(p-p) / Rs
(measured)
XL(measured)=
VL(p-p) / I(p-p)
XL(Calculated) =
2πf L
…
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