Electronics - Series Circuits - Discussion
Discussion Forum : Series Circuits - General Questions (Q.No. 7)
7.
Calculate the voltage at point B in the given circuit.
Discussion:
36 comments Page 1 of 4.
Wil said:
1 year ago
I cannot understand this, please help me to get this.
(1)
Poor mar said:
2 years ago
Use Millman's Theorem:
This is used to find the voltage across parallel branches with different voltage sources.
Vb = (9+73K)+(12+76K)/(1/73K)+(1/76K).
This is used to find the voltage across parallel branches with different voltage sources.
Vb = (9+73K)+(12+76K)/(1/73K)+(1/76K).
Ross said:
2 years ago
The answer should be approximately 1.5 volts the power sources positive facing positive cancel out resulting in a source voltage of 3 volts.
(4)
Quiet Kid said:
2 years ago
Vr 9V = (76k/150k) .9 = 4.56.
Vr 12V = (74k/150k) .12 = 5.92.
So, 4.56 + 5.92 = 10.48.
Vr 12V = (74k/150k) .12 = 5.92.
So, 4.56 + 5.92 = 10.48.
(7)
Faizan said:
7 years ago
i1 = 9/150,
i2 = 12/150,
vb = i1*74 + i2*76,
vb = 10.52.
i2 = 12/150,
vb = i1*74 + i2*76,
vb = 10.52.
(1)
Balu said:
7 years ago
Can anyone explain detail about superposition theorem?
(1)
Jonathan said:
8 years ago
Using Superposition:
Total Resistance = 150kOhm
@12V = On, 9V = Off:
I=80uA
Voltage Drop at C = 10.4V
Voltage Drop at B = 5.92V (save for later)
@12V = Off, 9V = On:
I =60uA
Voltage drop at A = 6.18V
Voltage drop at B = 4.56V (save for later)
solving for total drop at B
Vbtotal = Vb + Vb` = 5.92V + 4.56V = 10.48V.
Total Resistance = 150kOhm
@12V = On, 9V = Off:
I=80uA
Voltage Drop at C = 10.4V
Voltage Drop at B = 5.92V (save for later)
@12V = Off, 9V = On:
I =60uA
Voltage drop at A = 6.18V
Voltage drop at B = 4.56V (save for later)
solving for total drop at B
Vbtotal = Vb + Vb` = 5.92V + 4.56V = 10.48V.
(7)
Anonymous said:
9 years ago
KVL is best & short method.
((vb-9)/74) = ((12-vb)/76).
vb = 10.48.
((vb-9)/74) = ((12-vb)/76).
vb = 10.48.
(6)
Jason druye said:
9 years ago
What's superposition theorem?
Amy Jack said:
9 years ago
By using Superposition theorem we can solve this.
I got the correct answer as 10.5.
I got the correct answer as 10.5.
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