Electrical Engineering - Circuit Theorems and Conversions - Discussion
Discussion Forum : Circuit Theorems and Conversions - General Questions (Q.No. 3)
3.
Find the total current through R3 in the given circuit.
Discussion:
40 comments Page 3 of 4.
A patki said:
9 years ago
I didn't understand the solution, please explain.
Prabha said:
10 years ago
Superposition Theorem says:-
The total current in any part of a linear circuit equals the algebraic sum of the currents produced by each source separately.
To evaluate the separate currents to be combined, replace all other voltage sources by short circuits and all other current sources by open circuits.
By using this the answer is 5.5mA.
The total current in any part of a linear circuit equals the algebraic sum of the currents produced by each source separately.
To evaluate the separate currents to be combined, replace all other voltage sources by short circuits and all other current sources by open circuits.
By using this the answer is 5.5mA.
Jagadesh said:
10 years ago
As both the voltage sources are opposing in connection therefore the resultant voltage will be 24-18 = 6V.
The current through 3.3k resistor will be 6/3.3k = 1.8 mA.
The current through 3.3k resistor will be 6/3.3k = 1.8 mA.
Karthick s said:
1 decade ago
What is a formula to find out the short circuit current in a transformer?
Mayur said:
1 decade ago
I used the Thevenin voltage theorem across 3.3 K ohm.
Vth = 3V and Zth = 600 ohm so by this I got answer as 0.78 mA.
Vth = 3V and Zth = 600 ohm so by this I got answer as 0.78 mA.
Sathish said:
1 decade ago
If we consider the first loop there are two voltage sources then why do we consider only 24v source alone? Can anybody answer my question?
Jan said:
1 decade ago
Hi every one,
R2 and voltage source are connect ground potential.
Then I = V/R.
= 24/1.2+3.3 = 5.33 mA.
Why do you consider 18 volt source? That is open.
Please explain any one. Thanks advance.
R2 and voltage source are connect ground potential.
Then I = V/R.
= 24/1.2+3.3 = 5.33 mA.
Why do you consider 18 volt source? That is open.
Please explain any one. Thanks advance.
Sfgsgsdgfdg said:
1 decade ago
Oh, everyone R3 is not connected to ground since it does not have a dot. Instead R3 is connected to VS1.
BHUSHAN R CHAUDHARI said:
1 decade ago
Mayur you are right, common point is 6 volt higher than ref. point i.e. voltage across 3.3kohm resister is 6v. therefore current through it is 6v/3.3kohm = 1.8mA.
Mayur said:
1 decade ago
24-18 = 6v.
Total current through r3.
r3 = 3.3.
I = V/R.
I = 6/3.3.
I = 1.80.
Total current through r3.
r3 = 3.3.
I = V/R.
I = 6/3.3.
I = 1.80.
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