Question
Asked Sep 17, 2019
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3. For the following circuit determine (include and show all the steps): (4 marks)
a. Total impedance in polar form
b. Total current in polar form
C. Phase angle between source voltage and total current
d. Phasor diagram of voltage and currents in the circuit
XL
100
R
Хс
220
150 Q
Vs
1 <0° Vrms
AC
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3. For the following circuit determine (include and show all the steps): (4 marks) a. Total impedance in polar form b. Total current in polar form C. Phase angle between source voltage and total current d. Phasor diagram of voltage and currents in the circuit XL 100 R Хс 220 150 Q Vs 1 <0° Vrms AC

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Step 1

consider that the total impedance of the circuit is Z.

Rx(-JXJ
Z =
R-JXc
220х (-Л150) , ло0
C
220 J150
-69.80 J102.40 J100
69.80 J2.4
= 69.84(-1.97° O
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Rx(-JXJ Z = R-JXc 220х (-Л150) , ло0 C 220 J150 -69.80 J102.40 J100 69.80 J2.4 = 69.84(-1.97° O

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Step 2

Consider that I is the total current flowing through circuit.

1(0°
I =
(-1.97°
69.84
14.311.97° mA
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1(0° I = (-1.97° 69.84 14.311.97° mA

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Step 3

Consider that the phase angle between source volt...

a 1.97°
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a 1.97°

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