Question in Electronics
For the circuit above, determine the following (express all answers in phasor form):
 X_{C}
 Z_{eq}
 I_{T}
 R1
 I_{C1}
 Construct the circuit with MultiSIM using a 5% tolerance for the resistor and the capacitor. Adjust the frequency according to the table below and obtain measurements from MultiSIM using AC Analysis and express in polar form.
Frequency 
I_{T} 
I_{R1} 
I_{C1} 
100 Hz 

500 Hz 

1000 Hz 

1500 Hz 

10000 Hz 

20000 Hz 
 Discuss the following:
 Describe the relationship between the frequency and I_{T.}
 What effect does frequency have on Z_{eq}?

 How could the circuit be modified to bring the phase angle closer to 0^{○}?

 How could the circuit be modified to bring the phase angle closer to 90^{○}?
Include all calculations, screenshots of measurements, the table results of part 3 and the answers to parts 2 and 4 in a word
 Consider the circuit below:
For the circuit above, determine the following (express all answers in phasor form):
 X_{C}
Ans a. Xc =
Xc = 63.6619 ∟90◦ Ω
 Z_{eq}
Ans b. Zeq = R1Xc
=62.2752 ∟78.019◦ Ω
 I_{T}
Ans c. I_{T}= V/Zeq
=1.926∟78.019◦ A
 _{R1}
Ans d. R1 = 300 ∟0◦ Ω
 I_{C1}
Ans e.
Ic1 = V/Xc
= 1.8849 ∟90◦ A
_{ }
_{ }
_{ }
_{ }
_{ }
 Construct the circuit with MultiSIM using a 5% tolerance for the resistor and the capacitor. Adjust the frequency according to the table below and obtain measurements from MultiSIM using AC Analysis and express in polar form.
Circuit
For 100Hz
For 500Hz
For 1000Hz
For 1500 Hz
For 10000 Hz
For 20000Hz
Frequency  I_{T}  I_{R1}  I_{C1} 
100 Hz  549.6m∟136.69◦A  400m∟0◦ A  376.99m ∟90◦ A 
500 Hz  1.92693∟101.98◦A  400m ∟0◦ A  1.8849∟90◦ A 
1000 Hz  3.79107∟96.0566◦A  400m∟0◦ A  3.76991 ∟90◦ A 
1500 Hz  5.669∟94.611◦A  400m∟0◦ A  5.65487 ∟90◦ A 
10000 Hz  37.7012∟90.607◦ A  400m∟0◦ A  37.6991∟90◦ A 
20000 Hz  75.3982∟90.3039◦A  400m∟0◦ A  75.39822∟90◦ A 
 Discuss the following:
 Describe the relationship between the frequency and I
Ans a.
AS frequency increase I_{T} increases
 What effect does frequency have on Z_{eq}?
Ans b.
Zeq decrease with increase in frequency
 How could the circuit be modified to bring the phase angle closer to 0^{○}?
Ans c. Using Resistor instead of capacitor of same impedance
 How could the circuit be modified to bring the phase angle closer to 90^{○}?
Ans d.
Using inductor instead of capacitor of same impedance
Include all calculations, screenshots of measurements, the table results of part 3 and the answers to parts 2 and 4 in a word
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