Electrical Engineering - Circuit Theorems in AC Analysis - Discussion
Discussion Forum : Circuit Theorems in AC Analysis - General Questions (Q.No. 19)
19.
Determine VTH if R1 is changed to 3.3 k
.
.
0.574
16.7° V
16.7° V4.6316.7° V
16.7° V4.6339.5° V
39.5° V0.46339.5° V
39.5° VDiscussion:
7 comments Page 1 of 1.
Vamshi said:
1 decade ago
Anyone explain this answer please.
Abhishek Dhar said:
1 decade ago
Replace R1 by 3.3units. Then find the impedence of the circuit consisting of resistor of value 3.3units and capacitive reactances of values 2units. Find out the current in the considered circuit and multiply it with the capacitive reactance of the lower capacitor to get Vth.
Nikunj P said:
10 years ago
We can find this answer of question by Thevenens's theorem.
Lyes HADDAD said:
9 years ago
Zeq1 = 3.3k+j2k.
Vth = (Vs * Zc) / (Zeq1 + Zc),
Vth = (12* j2k) / (3.3k + j2k + j2k) = 24kj / ( 3.3k+ j4k) = j24 / (3.3 +j4).
= 4.62 (39.52°) V.
Vth = (Vs * Zc) / (Zeq1 + Zc),
Vth = (12* j2k) / (3.3k + j2k + j2k) = 24kj / ( 3.3k+ j4k) = j24 / (3.3 +j4).
= 4.62 (39.52°) V.
(1)
Swati said:
6 years ago
Instead of j there should be -j because capacitor is given here.
John said:
6 years ago
The angle of the answer should be in negative.
Sharp guy said:
4 years ago
I think the answer is 4.63 at an angle of negative 39.5.
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