Bissoy.com
Doctors Medicines MCQs Q&A

What are the steps required in sequence to solve a circuit using superposition theorem? (a) Select any one source and short circuit all other voltage sources. (b) Find out the current or voltage across the required element, due to the source under consideration. (c) Open all current sources, if the internal impedance is not known. If known replace them by their impedances. (d) Add all the individual effects produced by individual sources to obtain the total current in or across the voltage element. Code :

What are the steps required in sequence to solve a circuit using superposition theorem? (a) Select any one source and short circuit all other voltage sources. (b) Find out the current or voltage across the required element, due to the source under consideration. (c) Open all current sources, if the internal impedance is not known. If known replace them by their impedances. (d) Add all the individual effects produced by individual sources to obtain the total current in or across the voltage element. Code : Correct Answer (a), (c), (b), (d)

Concept:

Superposition Theorem states that the response in any element of a linear, bilateral RLC network containing more than one independent voltage or current source is the algebraic sum of responses produced by the independent source when each of them is acting alone with:

(i) All other independent voltage sources short-circuited

(ii) All independent current sources open-circuited.

(iii) All the dependent voltage and current sources remaining as it is, i.e. they are neither SC nor OC.

Note: If the internal resistance of the independent voltage or current sources is known then it is replaced by the internal resistance while short-circuiting or open circuiting.

Conclusion:

3 steps to solve circuits using superposition can be generalized:

1) Select any one source and short circuit all the other voltage sources.

2) Open all other current sources. If internal impedances are known then replace them by internal impedances.

3) Find out the current or voltage across the required element due to the source under consideration.

4) Finally, add all the individual effects produced by individual sources to obtain the total effect net effect.

Important Point: Superposition Theorem is not applicable in evaluating the power as it has a non-linear relationship.

Related Questions

Match List I with List-II and select the correct answer using the code given below the lists:   List I   List II A.  Superposition   theorem 1.  Impedance matching in audio   circuits B.  Thevenin's   theorem 2.  Linear bilateral networks C.  Kirchhoff's   voltage and  current laws 3.  Large network in which   currents in few elements to be   determined D.  Maximum power   transfer theorem 4.  Currents and voltage in all   branches of a network
Consider the following statements regarding reciprocity theorem : 1. In any passive linear bilateral network, if the single voltage source Vx, in branch x produces the current response Iy, in branch y, then the removal of the voltage source from branch x and its insertion in branch y will produce the current response iy in branch x. 2. The interchange of an ideal voltage source and an ideal ammeter in any passive, linear, bilateral circuit will not change the ammeter reading. 3. The interchange of an ideal current source and an ideal voltmeter in any passive linear bilateral circuit will change the voltmeter reading. Which of the above statements are correct ?
‘Grand Slam’ refers to winning certain major tennis tournaments in a single calendar year. The name of the tournaments are A. Australian Open, French Open and US Open B. Australian Open, French Open, Wimbledon and US Open.  C. French Open, US Open and Wimbledon D. French Open, US Open, Wimbledon and Olympic
This mention statement is associated with “In any network containing more than one sources of e.m.f. the current in any branch is the algebraic sum of a number of individual currents (the number being equal to the number of sources of e.m.f.), each of which is due to separate action of each source of e.m.f., taken order, when the remaining sources of e.m.f. are replaced by conductors, the resistances of which are equal to the internal resistances of the respective sources”.
“In any network containing more than one sources of e.m.f. the current in any branch is the algebraic sum of a number of individual fictitious currents (the number being equal to the number of sources of e.m.f.), each of which is due to separate action of each source of e.m.f., taken in order, when the remaining sources of e.m.f. are replaced by conductors, the resistances of which are equal to the internal resistances of the respective sources”.The above statement is associated with
This mention statement is associated with
“In any network containing more than one sources of e.m.f. the current in any branch is the algebraic sum of a number of individual currents (the number being equal to the number of sources of e.m.f.), each of which is due to separate action of each source of e.m.f., taken order, when the remaining sources of e.m.f. are replaced by conductors, the resistances of which are equal to the internal resistances of the respective sources”.
“In any network containing more than one sources of e.m.f. the current in any branch is the algebraic sum of a number of individual fictitious currents (the number being equal to the number of sources of e.m.f.), each of which is due to separate action of each source of e.m.f., taken in order, when the remaining sources of e.m.f. are replaced by conductors, the resistances of which are equal to the internal resistances of the respective sources”.
The above statement is associated with
S1: The right way to get people do things the way you want is not to compel them, drive them or for that matter even beg them or entreat them.
P: The sure way to antagonise an individual is to give him the impression that you are out to force or compel him to do something.
Q: The correct way is, therefore, to arouse a want in them and make them do, whatever you want them to do willingly, happily and eagerly.
R: It is the most difficult thing in the world to make an individual do anything against his will.
S: Even young, innocent children resent being made to do things.
S6: The secret of motivation, therefore, lies in your ability to arouse the right kind of want or thirst in the other people.

The Proper sequence should be:
Read the passage carefully and select the best answer to each question out of the given four alternatives. By practicing mindfulness and other principles, we become more aware of and present to our fears and others fears, bearing witness as a way of healing andempowering. We see the spiritual path as intertwined with the path of social action, with contemplation and action parts of the same whole, each nourishing andguiding the other. Acknowledging that our well-being depends on others makes caring for others well-being a moral responsibility.
Through a “mindful citizen” exercise, we create a story articulating who we are as individuals who are also part of communities. This exercise helps us move beyond cynicism, complacency, and despair, instead infusing us with a sense of purpose. We embrace our gifts, resolving to do our part to promote a sense of common humanity as a means toward social justice.
With this exercise, I believe we can help students bridge their divides and replace anger and distrust with compassionate connections – just as I witnessed betweenShirley and Tiffany.
Shirley returned to class after a brief hiatus, keeping a cool distance from Tiffany. But over the weeks spent together they gradually came to know each other. They practiced seeing and listening, sharing stories so different that they felt bewildered as to how they could overcome the gap. But they found that acknowledging their differences led them to discover a place of deep connection in commonalities, such as being raised by grandmothers, and even wounds, including childhood trauma,that they never imagined existed.
In assessments of these classes, students say that these small groups become “healing communities,” where we overcome victimization and claim agency. Healingoccurs as we transcend an “us vs. them” mentality, crossing borders and forging connections. These communities show a way of reducing intergroup prejudice andfostering inclusion based in psychology research and pedagogical practice. How students can replace their anger and distrust?
Consider the following statements for Norton’s theorem: 1. Short the branch resistance through which current is to be calculated. 2. Obtain the current through this short-circuited branch, using any of the network simplification techniques. 3. Develop Norton’s equivalent circuit by connecting current source IN with the resistance RN in series with it Which of the above statements are correct?