September 2021

Stabilisation

Stabilisation   The collector current in a transistor changes rapidly when. (i) the temperature changes, (ii) the transistor is replaced by ...

Transistor Biasing

Transistor Biasing     Transistor biasing-It has formerly been bandied that for faithful modification, a transistor amplifier must satisfy t...

Faithful Amplification

Faithful Modification     The process of raising the strength of a weak signal without any change in its general shape is known as faithful ...

Transistor Testing

Transistor Testing     Transistor Testing-An ohmmeter can be used to check the state of a transistor i.e., whether the transistor is good or...

Operating Point

Operating Point      The zero signal values of I C and V CE are known as theoperating point. It is call operating point because the variat...

Transistor Action

Transistor Action     The emitter-base junction of a transistor is forward biased whereas collector-base junction is reverse biased. If for ...

Transistor

Transistor     A transistor consists of two pn junctions formed by *sandwiching either p-type or n-type semiconductor between a pair of oppo...

Shockley Diode

Shockley Diode     Named after its inventor, a Shockley diode is a PNPN device having two terminals as shown in Fig. 1 (i). This *device act...

Application of Varactor Diode

Application of Varactor Diode     A junction diode which acts as a variable capacitor under changing reverse bias is known as avaractor diod...

Varactor Diode

Varactor Diode     A junction diode which acts as a variable capacitor under changing reverse bias is known as avaractor diode.When a pn jun...

Our School canteen

Our School canteen A good school is supposed to have a canteen in its compound. There is a canteen in our school compound. It is housed in a...

A bridal Party

A bridal Party     A bridal party is a merry scene. Many people gather wearing their best dress. The women of the rich families wear gorgeou...

A Book Fair

A Book Fair     What is a book fair? What is its origin? Which are the leading organizations of a book fair? What types of books are availab...

how to consult a doctor

how to consult a doctor Firstly make an appointment with a doctor and go to him accordingly. Then wait in the waiting room. The patients are...

how to keep fit health

how to keep fit health     In order keep fit you have to follow the rules of health. You cannot keep fit without eating a balanced diet. Alo...

how to wash clothes

how to wash clothes To wash dirty clothes, first take a cake of washing soap and rub it on wet clothes. Use warm water for some time. The cl...

preparation for an examination

preparation for an examination     [There are a good number of students who work hard throughout the year but cannot take a good preparation...

How to Learn English

How to Learn English     [Most of the students in our country are weak in English. Though they try heart and soul, they cannot make progress...

How to prepare a cup of tea

How to prepare a cup of tea     [Suppose, you want to help your younger sister to learn how to prepare a cup of tea. Then you give her some ...

how to open an account in a bank

how to open an account in a bank   [Suppose, you are manager of a bank, and someone has appeared to you with a view to opening an account wi...

mosquito menace

mosquito menace   for man. Mosquito menace has taken a serious turn in our city. People cannot work peacefully. Students cannot pay attentio...

keeping a diary

keeping a diary   A diary is a record of daily events, thoughts, feelings and experience etc. It is also a useful thing as short notes of da...

my childhood

my childhood   Like all other people I enjoyed my childhood days. I cannot forget the sweet memories of those days. I still remember my firs...

my daily activities at home

I am a student. I have to do a lot of activities at home. In the morning I prepare my lesson. I clean my reading table. Then I tidy up my ro...

A Street Beggar Paragraph

A Street Beggar     A street beggar is a person who begs in streets. He is found in tatters sitting at one side of a street which is usually...

importance of physical exercise

Physical exercise is very important and useful in our life. We need it for many reasons. It helps our muscles and nerves to work properly. I...

village life paragraph

Village life is quite natural and the people in our villages live a very simple life. Their life is very easy-going. They wake up from sleep...