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Answered on 04 Aug CBSE/Class 12/Science/Mathematics

Ravi Muthumani

Maths Tutor

500 to 600 per hour.
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Lesson Posted on 04 Aug CBSE/Class 12/Science/Mathematics

Understanding Limits Through Graphs

Abhilash K S

Faculty for Engineering Mathematics in a private tuition center. Faculty for CAT/GMAT/GRE/SAT. Faculty...

Maths is often taught mechanically. Just consider the case of limits. Most of the standard textbooks define, the limit is the value that a function "approaches" as the input "approaches" some value. This neither gives the "feel" of maths, nor a beginner can appreciate its "beauty". A graphical approach... read more

Maths is often taught mechanically. Just consider the case of limits. Most of the standard textbooks define, the limit is the value that a function "approaches" as the input "approaches" some value.

This neither gives the "feel" of maths, nor a beginner can appreciate its "beauty". A graphical approach is often more insightful.

Consider, the graph of f(x)=1/x.

In this case, at X=0, the value of f(x) approaches minus infinity if we approach from the negative side of the number line and f(x) approaches plus infinity if we approach from the positive side of the number line. Essentially, the limit doesn't exist as LHL is minus infinity and RHL is plus infinity.

Now to make it more clear consider the graph of f(x)=1/x^2

Here at x=0, both LHL and RHL approaches plus infinity. Hence limit exists as plus infinity at x=0.
Just by observing these two graphs a beginner gets an insight into when a limit is said to exist and when not.

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Answered on 10 Aug CBSE/Class 12/Science/Physics

Flux linked with coil changes, an emf induced and then in what way the induged emf oppose the cause.   

HARISH KHEMANI

Tutor

The induced EMF in the coil induces the current in the coil. Therefore as a result, a Magnetic field also gets induced by virtue of induced current. Now , this induced Magnetic Field should create its own Flux which should be opposite to the Magnetic flux of the external field. For example, if external... read more

The induced EMF in the coil induces the current in the coil. Therefore as a result, a Magnetic field also gets induced by virtue of induced current.

Now , this induced Magnetic Field should create its own Flux which should be opposite to the Magnetic flux of the external field.

For example, if external magnetic flux was decreasing, this induced Magnetic flux should be increasing.

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Answered on 04 Aug CBSE/Class 12/Science/Mathematics

Debesh Mukherjee

Mathematics & Statistics Teacher

Rs 300 per hour of Teaching/Coaching Mathematics which I usually charged for each student. = Debesh Mukherje
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Lesson Posted on 30 Jul CBSE/Class 12/Commerce/Business Studies

notes on all the process related questions in Bst class 12 CBSE

Shashi Ramachandran

I am an experienced, qualified teacher with over 18 years of experience in teaching Accountancy and Business...

PROCESS RELATED QUESTIONS Planning Process Setting Objectives: The first step is setting objectives for the entire organisation and each department or unit within the organisation. Developing Premises: Since future is uncertain therefore, the manager is required to make certain assumptions called... read more

PROCESS RELATED QUESTIONS

Planning Process

  1. Setting Objectives: The first step is setting objectives for the entire organisation and each department or unit within the organisation.
  2. Developing Premises: Since future is uncertain therefore, the manager is required to make certain assumptions called as premises.
  3. Identifying alternative courses of action through which the desired goals can be achieved.
  4. Evaluating alternative courses to analyse the relative pros and cons of each alternative in the light of their feasibility and consequences.
  5. Selecting an alternative or a combination of plans which appears to be most feasible
  6. Implement the plan with the help of a strategy.
  7. Follow up action in order to monitor the plans to ensure that the desired objectives are achieved efficiently and effectively.

Organizing Process

  1. Identification and division of work: The work is divided into manageable activities so that duplication can be avoided and the burden of work can be shared among the employees.
  2. Departmentalisation involves grouping of similar activities into departments, units, sections, etc. using several criteria.
  3. Assignment of duties is done to the members as per their job positions. Once departments have been created, each of them is placed under the charge of an individual.
  4. Establishing reporting relationships each individual should also know who he has to take orders from and to whom he is accountable. The establishment of such clear relationships helps in coordination.

Staffing Process

  1. Estimating the manpower requirements on the basis of workload analysis and workforce analysis.
  • Workload Analysis number and types of human resources necessary for various jobs.
  • Workforce Analysis the number and type of human resources available.
  1. Recruitment is the process of searching for prospective employees and stimulating them to apply for jobs in the organisation.
  2. Selection is the process of choosing from among the pool of the prospective job candidates developed at the stage of recruitment.
  3. Placement and Orientation is done by giving the charge of the post to the employees for which he has been selected. It also includes introducing him to the other employees and familiarising him with the rules and policies of the organisation.
  4. Training and development is done in order to ensure continuous learning of their employees so that they contribute effectively and efficiently to achieve organisational goals. Training is given to make a person job fit whereas development seeks to increase their potential for higher level jobs.
  5. Performance appraisal is to evaluate the worth of an employee to the organisation
  6. Promotion and career planning are an integral part of people’s career and enhance their job satisfaction.
  7. Compensation refers to all forms of pay or rewards going to employees.

Selection Process

  1. Preliminary Screening helps the managers to eliminate unqualified or unfit job seekers who do not fulfil the minimum requirements of job.
  2. Selection Tests helps to measure certain characteristics of individuals.
  3. Employment Interview is a face-to-face conversation conducted to evaluate applicant’s suitability for the job.
  4. Reference and Background check is to verify information and gaining additional information about an applicant.
  5. Selection Decision is made from among the candidates who pas the tests and interview.
  6. The candidates are required to undergo a medical examination before the job offer is made.
  7. Job Offer is made to those applicants who have passed all the previous tests.
  8. Contract of Employment is issued to the selected candidate and includes information like job title, duties, responsibilities date of joining, pay and allowances etc.

 

 

 

 

 

Controlling Process

  1. Setting Standards in clear, specific and measurable terms
  2. Measurement of actual performance as far as possible in the same units in which standards are set.
  3. Comparing actual performance with standards to identify deviations if any.
  4. Analysing deviations through critical point control and management by exception approaches.
  • Critical Point Control (CPC): control should focus on key result areas (KRAs) which are critical to the success of an organisation.
  • Management by exception (MBE): only significant deviations which go beyond the permissible limit should be brought to the notice of management.
  1. Taking corrective action whenever the deviation occurs beyond the permissible limits so that it does not re occur in future.

Trading Procedure on a Stock Exchange

  1. The investor approaches a registered broker or sub-broker for trading.
  • The investor has to sign a broker-client agreement and a client registration form.
  • The investor has to give certain details and information about him including PAN number, date of birth, bank account details, income details etc.
  • After the completion of the above formalities, the broker opens a trading account in the name of the investor.
  1. The investor has to open a demat account with a depository participant and a bank account for trading transaction in cash.
  2. The investor then places an order to buy or sell shares with the broker.
  • By giving clear instructions about the desired quantity and price.
  • The broker will then make the investor aware about the feasibility of the order.
  • The broker will issue an order confirmation slip to the investor.
  1. The broker will then execute the order through screen based trading by considering the best available deal.
  2. The broker will issue a trade confirmation slip to the investor.
  3. Within 24 hours after the deal is executed the broker issues a contract note.
  • A contract note contains details about the deal i.e., the number of securities bought/sold, price, date and time of transaction etc.
  • The contract note includes a unique order code generated by the stock exchange for that transaction.
  1. Since the settlement cycle is T+2 therefore, within two days of receiving the Contract Note, the investor has to pay cash or deliver shares sold as the case may be. The can then forward it to the exchange.  This is called pay-in-day.
  2. On the T+2 day, cash will be paid or shares will be delivered as the case may be by the exchange to the other broker. This is called pay-out-day. Then, in case of sale of shares, the broker has to make payment to the investor within 24 hours.

Motivation Process

  1. Unsatisfied Need
  2. Tension
  3. Drives
  4. Search
  5. Satisfied need
  6. Reduction of Tension

Communication Process

  1. Sender
  2. Message
  3. Encoding
  4. Media
  5. Decoding
  6. Receiver
  7. Feedback
  8. Noise

                                                                                               

 

 

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Lesson Posted on 23 Jul CBSE/Class 10 CBSE/Class 11/Science/Biology CBSE/Class 10/Science/Life Processes +8 CBSE/Class 9/Science CBSE/Class 12/Science/Biology Tuition/BTech Tuition/Genetic Engineering Tuition/BA Tuition/Fundamentals of Genetic Engineering Tuition/BSc Tuition/Genetics & Genomics Tuition/BSc Tuition/Human Genetics Exam Coaching/Engineering Entrance Coaching/GATE Coaching/Biotechnology Tuition/BA Tuition/Bio-Chemistry less

Basics of Nucleic Acid (Part 1)

Ankita Das

I am an experienced, qualified tutor with over 5 years of experience in teaching Science subjects (physics...

There are 4 crucial components in an organism. 1) Carbohydrate 2) Proteins 3) Fat 4) Nucleic Acids In this lesson, the discussion will be on nucleic acids. There are mainly two types of nucleic acids. a) DNA ( de-oxy-ribonuceic acid) b) RNA (ribonucleic acid) DNA is a macromolecule which... read more

There are 4 crucial components in an organism.

1) Carbohydrate

2) Proteins

3) Fat

4) Nucleic Acids

 

In this lesson, the discussion will be on nucleic acids.

There are mainly two types of nucleic acids.

a) DNA ( de-oxy-ribonuceic acid)

b) RNA (ribonucleic acid)

 

DNA is a macromolecule which is the career of all the genetic information. DNA itself carries out all the main functions of the body in the molecular level.

 

Structure of DNA:

DNA basically is a polymer. It is a polymer of nucleotides. The nucleotide consists of 3 components. 

•Nitrogen Base

• De oxy Ribose sugar (has 5 carbon atoms)

•Inorganic Phosphate

 

There are 4 types of nitrogen base in DNA.

•Adenine (A)

•Guanine (G)

•Thymine (T)

•Cytosine (C)

 

They are categorised into two sections. First one is Purine which consists of Adenine and Guanine. Another one is Pyrimidine which consists of Thymine and Cytosine. 

 

DNA is a double-stranded helix. Each strand has the nucletonuc pairs. The pairing is made by bonding between the nitrogen bases between each stand.

Adenine always makes a pair with Thymine with double hydrogen bonds. Guanine makes a triple bond with Cytosine.

 

What is nucleotide?

= Nucleotide is a monomer consists of a nitrogen base, a de-oxy-ribose sugar and an inorganic phosphate residue. It is the basic constituent of a DNA molecule.

 

What is nucleoside?

= Nucleoside consists of a nitrogen base, a de-oxy-ribose sugar, but lacking a phosphate residue.

 The bond between the nitrogen base and the sugar is called the glycosidic bond.

DNA has a helical structure. The two strands are in helix form but in a parallel manner. So there are loops in the helix (see figure below). Usually, DNA has a right-handed helix. There are 10 base pairs in a single loop.

The diameter of a DNA helix is 20 Å

The distance between two corresponding nucleotide pairs is 3.4 Å

So the length of a loop is 3.4x10= 34 Å.Structure of DNA

 

 

 

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Lesson Posted on 21 Jul CBSE/Class 12/Science/Biology

Mitosis

Sancy Harish

I worked as teacher in aided school and in CBSE school. I plan lessons that meets learners needs and...

Mitosis is a method of cell division in which a cell divides and produces identical copies of itself.The primary mechanism by which organisms generate new cells is through cell division. During this process, a single “parent” cell will divide and produce identical "daughter" cells. In this... read more



Mitosis is a method of cell division in which a cell divides and produces identical copies of itself.The primary mechanism by which organisms generate new cells is through cell division. During this process, a single “parent” cell will divide and produce identical "daughter" cells. In this way, the parent cell is able to pass on its genetic material to each of its daughter cells. First, however, the cells must duplicate their DNA. Mitosis is the process by which a cell segregates its duplicated DNA, ultimately dividing its nucleus into two.

 

 

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Answered on 05 Aug CBSE/Class 10/Mathematics/Coordinate geometry/Class 10 Difference between two points and section formula CBSE/Class 12/Science/Mathematics

How many solutions are there for 

F(x)= 2^(x) - x-2

Manu BK

Tutor

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Answered on 21 Jul CBSE/Class 12/Science/Chemistry

How to contact directly with students?

Mou B.

Tutor

By phone
Answers 1 Comments
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