Electrical Engineering - Circuit Theorems and Conversions - Discussion
Discussion Forum : Circuit Theorems and Conversions - General Questions (Q.No. 1)
1.
Find the Thevenin equivalent (VTH and RTH) between terminals A and B of the circuit given below.
4.16 V, 120 
41.6 V, 120
4.16 V, 70
41.67 V, 70
Discussion:
43 comments Page 3 of 5.
Aaron said:
1 decade ago
In what world is R3 parallel to R1 and R2? they look in series to me. It is parallel to the load yet, but not with R1 and R2. The definition of parallel connection is that it shares two or more nodes, and this simply does not. I am confused.
Padam limbu said:
10 years ago
41.66 v and 70 Ohm is correct.
EEE said:
9 years ago
@ALL.
For the kind information, R3 is opened while calculating Rth. So, actual Rth is 100+68. This is what the Venin's theorem states.
For the kind information, R3 is opened while calculating Rth. So, actual Rth is 100+68. This is what the Venin's theorem states.
VIJAYA said:
4 months ago
How (100 + 68)/(100 + 68 + 120) = 70?
Is this correct, please explain how did 70 come.
Is this correct, please explain how did 70 come.
BASAVARAJ K T said:
1 decade ago
vth=(VS*R3)/(R1+R2+R3)
Rth=R1R2/(R1+R2)
Rth=R1R2/(R1+R2)
Arasu said:
2 decades ago
I want some simple technic for this sum.
Apuelectrical said:
2 decades ago
rth = r3||(r1 + r2)
vth = vs.r3/r1+r2
vth = vs.r3/r1+r2
Swetapadma said:
2 decades ago
rth=120//(100+68)
vth=
vth = vs.r3/r1+r2
=ioo*120/(100+120+68)
vth=
vth = vs.r3/r1+r2
=ioo*120/(100+120+68)
Pabitra Roy said:
2 decades ago
Vth=v*120/288,
Rth=168*120/(120+168)
Rth=168*120/(120+168)
Soma said:
2 decades ago
Vth = R3*(Vs/(R1+R2+R3))= 120*(100/(68+100+120)) = 41.67 V
Rth = R3//(R1+R2) = (120*160) / (120 + 168)= 70 ohm
Rth = R3//(R1+R2) = (120*160) / (120 + 168)= 70 ohm
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