Electrical Engineering - Circuit Theorems in AC Analysis - Discussion
Discussion Forum : Circuit Theorems in AC Analysis - General Questions (Q.No. 6)
6.
Determine VTH for the circuit external to RL in the given figure.
135
63.4° V
63.4° V13.563.4° V
63.4° V13.50° V
0° V1350° V
0° VDiscussion:
3 comments Page 1 of 1.
Rishu singh said:
6 years ago
I=30<0/(90+45i) =.2981<-26.565 and then vth across resistance.
45i = 45<90*.2981<-26.565 = 13.4145<63.435.
So, the answer is B.
45i = 45<90*.2981<-26.565 = 13.4145<63.435.
So, the answer is B.
Pratiksha said:
9 years ago
Thanks. Yeah right, you explained it properly. Actually, it's a logical circuit.
Appayya said:
1 decade ago
It can be easily identified in the circuit.
Vth is the voltage across XL and it can be seen that the voltage should be less than the input voltage, so the option sorts to B & C. Out of which if the impedance certain impedance is present and it cannot be zero. So, option B is right.
Vth is the voltage across XL and it can be seen that the voltage should be less than the input voltage, so the option sorts to B & C. Out of which if the impedance certain impedance is present and it cannot be zero. So, option B is right.
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