Electrical Engineering - Circuit Theorems in AC Analysis - Discussion
Discussion Forum : Circuit Theorems in AC Analysis - General Questions (Q.No. 1)
1.
Determine VTH when R1 is 180 
and XL is 90 .
and XL is 90 .
135
63.4° V
63.4° V13.563.4° V
63.4° V12.20° V
0° V1220° V
0° VDiscussion:
16 comments Page 2 of 2.
Vijaya said:
1 decade ago
Give simple technique for this type of problems.
Gary said:
1 decade ago
Can't be (A), load voltage is higher than the source.
Can't be (C) or (D), as the phase angle is zero.
Even without doing the calculations, it has to be (B).
Can't be (C) or (D), as the phase angle is zero.
Even without doing the calculations, it has to be (B).
Cherry said:
1 decade ago
Simply replace with 180 and 90 and solve
1st find out the current in the loop ...to find Vth
1. 30/sqrtof(180 and 90) with angle ll get
2. then multiply with Xl to get Vth
0.15*90 at angle 90
Ans.13.25 at an angle 63.4
1st find out the current in the loop ...to find Vth
1. 30/sqrtof(180 and 90) with angle ll get
2. then multiply with Xl to get Vth
0.15*90 at angle 90
Ans.13.25 at an angle 63.4
James said:
1 decade ago
Xl also has some form of resistance
Alfredo said:
1 decade ago
Why is XL given in ohms? Shouldn't it be henries?
Anand m said:
1 decade ago
I want no the explanation for this quation.
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