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Ask QuestionPosted by Uma Kumar 5 years, 3 months ago (9847439)
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[email protected] Abhaabha 5 years, 3 months ago (9847069)
Posted by Digesh Dhruw 5 years, 3 months ago (9855626)
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Posted by Sanjana Dangari 5 years, 3 months ago (9305786)
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Posted by C Abbi 5 years, 3 months ago (9001972)
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Posted by Shivdeep Singh 5 years, 3 months ago (9494746)
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Srikarthik Josyula 5 years, 3 months ago (6001861)
Parul . 5 years, 3 months ago (9858503)
Gaurav Seth 5 years, 3 months ago (2898529)
A simple Electric Motor :
An electric motor converts electrical energy into mechanical energy.
Principle: It works on the principle of the magnetic effect of the current. when a current-carrying conductor is placed in the magnetic field, it experiences a force and starts moving.
Working :
An electric motor, as shown is, consists of a rectangular coil ABCD of insulated copper wire. The coil is placed between the two poles of a magnetic field such that the arm AB and CD are perpendicular to the direction of the magnetic field. The ends of the coil are connected to the two halves P and Q of a split ring. The inner sides of these halves are insulated and attached to an axle. The external conducting edges of P and Q touch two conducting stationary brushes X and Y, respectively.
Current in the coil ABCD enters from the source battery through conducting brush X and flows back to the battery through brush Y. Notice that the current in arm AB of the coil flows from A to B. In arm CD it flows from C to D, that is, opposite to the direction of current through arm AB. On applying Fleming’s left-hand rule for the direction of the force on a current-carrying conductor in a magnetic field (see Fig. 13.13). We find that the force acting on arm AB pushes it downwards while the force acting on arm CD pushes it upwards. Thus the coil and the axle O mounted free to turn about an axis, rotate anti-clockwise. At half rotation, Q makes contact with the brush X and P with brush Y. Therefore the current in the coil gets reversed and flows along the path DCBA. A device that reverses the direction of flow of current through a circuit is called a commutator. In electric motors, the split ring acts as a commutator. The reversal of current also reverses the direction of force acting on the two arms AB and CD. Thus the arm AB of the coil that was earlier pushed down is now pushed up and the arm CD previously pushed up is now pushed down. Therefore the coil and the axle rotate half a turn more in the same direction. The reversing of the current is repeated at each half rotation, giving rise to a continuous rotation of the coil and to the axle.
The split ring helps in reversing the direction of current in the armature so that it rotates continuously in one direction.
Posted by Rajbir Yadav 5 years, 3 months ago (9614398)
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ᴘʀᴀsᴀɴᴊᴇᴇᴛ ★Genius★ 5 years, 3 months ago (8146552)
Govind Mandal 5 years, 3 months ago (9702704)
Gaurav Seth 5 years, 3 months ago (2898529)
'His First Flight' is a parable. The seagulls convey the message of self-confidence, motivation and self-reliance. The mother seagull motivates the young one enough to get him to learn flying. The baby seagull realises the importance of belief and faith. He flaps his wings to learn flying and gain the confidence to be independent. The story conveys 'Give a man a fish and you feed him for a day; teach a man to fish and you feed him for a lifetime'. The parable also stresses the importance of family ties and filial support.
Posted by Worngathing Kamkara 5 years, 3 months ago (9836715)
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Arushi . 5 years, 2 months ago (9148678)
Posted by Rajbir Yadav 5 years, 3 months ago (9614398)
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Abdul Qhadir Azhari Azhari 5 years, 3 months ago (9647388)
ᴘʀᴀsᴀɴᴊᴇᴇᴛ ★Genius★ 5 years, 3 months ago (8146552)
Gaurav Seth 5 years, 3 months ago (2898529)
Freedom is the natural instinct of every living being. Everyone loves freedom and does not want to live in confinement. Similarly, the tiger also longed for freedom. He was so fed up being caged that he even ignored the visitors. He took to and fro steps in the cage as if trying to while away the time. The tiger wanted to escape this captivity.
God has made all living beings equally and thus, the animals too have the right to freedom. They should not be caged. It is their right to enjoy their natural habitat i.e. the forest and run freely in the wild. We should, thus, respect their freedom and should not put them in the zoo.
Posted by Aarohi Tiwari 5 years, 3 months ago (9843785)
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Posted by Armaan Singh 5 years, 3 months ago (9026885)
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Maniya Jain 5 years, 3 months ago (9502639)
Tejasvini S 5 years, 3 months ago (9158229)
Gaurav Seth 5 years, 3 months ago (2898529)
The amount of urine is regulated by reabsorption of water through blood capillaries. The reabsorption takes place through tubules of nephrons which is a functional unit of kidney. Amount of urine depends on concentration of water converted into urine and amount of water into body thus maintains the neutral concentration of cell volume all over body.
Posted by George Joel 5 years, 3 months ago (9855411)
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Gaurav Seth 5 years, 3 months ago (2898529)
It is an extension of profit and loss account and shows appropriation or distribution of profits. After the profit and loss account has been prepared, the profit for the year is transferred to the profit and loss appropriation account. This account will show how the net profit or net loss of the firm is being appropriated among the partners. It is a nominal account in nature.

Posted by Athulya M 5 years, 3 months ago (9014109)
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Posted by Saurvi Gahlaut 5 years, 3 months ago (7890128)
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Gaurav Seth 5 years, 3 months ago (2898529)
Democracies often frustrate the needs of the people because of the following reasons:
- It leads to delay in decision making process. For example, in reduction of age from 18 to 16 for juveniles. The government before amending the law needs to look after its pros and cons from each angle, because it might affect a larger section of people. Also, it might prove to jeopardize the fate of innocents wrongly convicted or even undertrials.
- It sometimes goes against people's opinions. For instance, in the case of Patidar community agition for reservation in Gujarat. The government needs to think before agreeing to such kind of opinions of the people, because it needs to look at the greater good, even if it means going against the people's opinion. It also needs to look after the opinion of the other people of the nation before making taking such steps.
- For demcoratic forms of government, poverty eradication is a long term process, there are not quick fixes in democracy. For example, we can cite the case of the state of Bihar. The JD(U) government led by Nitish Kumar has been in power in Bihar for two consecutive terms and has initiated some profound poverty eradication state projects. However, there is such drastic lack of basic infrastructure in Bihar that it is going to take a long time for the benevolent effects of these programmes to percolate to the grassroot level.
Posted by Sankar Yadav 5 years, 3 months ago (9702102)
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Posted by Sahil Mourya 5 years, 3 months ago (9855260)
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Gaurav Seth 5 years, 3 months ago (2898529)
- Mendel conducted the experiments using <i>Pisum sativum </i>or pea plant.
- He selected homozygous tall (TT) and dwarf (tt) pea plants.
- He crossed the tall pea plant with the dwarf pea plant.
- It was observed that the F1 generation are all tall plants.
- Thus, it was concluded that the gene causing tallness is dominant while the gene causing dwarfness is recessive.
- The trait expressing itself in the hybrid is the dominant one.
- This experiment proves Mendel’s first law of inheritance.
- It states that when a pair of contrasting factors is brought in a hybrid, one factor inhibits the appearance of the other, one which inhibits is the dominant one and which is inhibited is recessive.
Posted by Priyadarshini Behera 5 years, 3 months ago (9768372)
- 2 answers
Everything Here 5 years, 3 months ago (9185735)
Gaurav Seth 5 years, 3 months ago (2898529)
LED is Light Emitting Diode which glows even for a small or low value of current. Light-emitting diodes, or LEDs, are widely used as a standard source of light in electrical equipment.
Uses :
- Used for TV back-lighting
- Uses in displays
- Used in automotive
- LEDs used in the dimming of lights
Posted by Riya Kalar 5 years, 3 months ago (7300550)
- 2 answers
Gaurav Seth 5 years, 3 months ago (2898529)
The equation whose graph is a straight line is called linear equation.
Linear equations are also first-degree equations as it has the highest exponent of variables as 1. Some of the examples of such equations are as follows:
- 2x – 3 = 0,
- 2y = 8
- m + 1 = 0,
- x/2 = 3
Posted by Priyangshi Chowdhury 5 years, 3 months ago (9727259)
- 3 answers
Priyangshi Chowdhury 4 years, 7 months ago (9727259)
Posted by Sahil Yadav 5 years, 3 months ago (9555696)
- 2 answers
Gaurav Seth 5 years, 3 months ago (2898529)
Download CBSE class 10th revision notes for Chapter 2 Acids Bases and Salts in PDF format for free. Download revision notes for Acids Bases and Salts class 10 Notes and score high in exams. These are the Acids Bases and Salts class 10 Notes prepared by team of expert teachers. The revision notes help you revise the whole chapter in minutes. Revising notes in exam days is on of the best tips recommended by teachers during exam days.
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<a href="https://mycbseguide.com/blog/acids-bases-salts-class-10-notes-science/" ping="/url?sa=t&source=web&rct=j&url=https://mycbseguide.com/blog/acids-bases-salts-class-10-notes-science/&ved=2ahUKEwiE2M7JmrjsAhVOyjgGHe1dAGcQFjAAegQIBhAC" rel="noopener" target="_blank">Acids Bases and Salts class 10 Notes Science - myCBSEguide</a>
Posted by Aadarsh Pandey 5 years, 3 months ago (8456330)
- 1 answers
Gaurav Seth 5 years, 3 months ago (2898529)
Bio data refers to a person’s life, experience and achievements. It should be representative of all your personal and professional details in a specified format. It is generally divided into four parts:
- Personal Details
- Qualifications
- Experience
- References
The bio-data or curriculum vitae (C.V.) is written in a standardised format. The forwarding letter reflects the personality of the writer. It must be brief and polite. While stressing personal qualities such as habits, manners, health, physique etc., it should avoid the two extremes of bragging and ingratiating.
The Biodata or CV is generally divided into four parts as follows-
- Personal Details
- Qualifications
- Experience
- References
It goes like-
BIO-DATA (HEADING)
NAME
FATHER’s NAME
DATE OF BIRTH – In expanded form
ADDRESS
AGE
CONTACT NO.
EMAIL ID
NATIONALITY-Indian
MARITAL STATUS
QUALIFICATIONS-
| NAME OF THE EXAMINATION |
NAME OF THE BOARD/ UNIVERSITY |
NAME OF THE INSTITUTION |
YEAR OF PASSING |
PERCENTAGE |
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- Qualifications must be written in tabular form with the above mentioned heads.
WORK EXPERIENCE- It should be written from latest to the oldest along with the duration.
ACHIEVEMENTS
LANGUAGES KNOWN
SKILLS
WEAKNESSES
HOBBIES
REFERENCES
DECLARATION
DATE
PLACE
SIGNATURE
Posted by Sahil Yadav 5 years, 3 months ago (9555696)
- 1 answers
Posted by Sahil Yadav 5 years, 3 months ago (9555696)
- 3 answers
Posted by Krish Patel 5 years, 3 months ago (9855364)
- 0 answers
Posted by Zain Saifi 5 years, 3 months ago (9817794)
- 2 answers
Itachi Uchiha ? 5 years, 3 months ago (9336081)
Posted by Neha Kumari Paswan 5 years, 3 months ago (9798783)
- 1 answers
Gaurav Seth 5 years, 3 months ago (2898529)
Ali was the fourth Caliph. He fought two wars against those who were representing the aristocracy of Mecca. As a result of these wars, the rifts among the Muslims depened. Later on his supporters and enemies got divided into two sects. These two sects were: Shias and Sunnis. Ali established himself at Kufar and defeated Aisha’s (Muhammad’s wife) army in the Battle of Camel in 657.
Although Ali won this war but he was unable to suppress the group led by Muawiya, a kinsman of Uthman and the governor of Syria. Then he fought another war with him at Siffin, which ended in a truce. After the War of Siffin, Ali’s followers got divided into two groups. Some remained loyal to them, while others who left them came to be known as Kharjis.
Posted by Neha Kumari Paswan 5 years, 3 months ago (9798783)
- 1 answers
Gaurav Seth 5 years, 3 months ago (2898529)
Question.
What are the twin objectives of Caliphate?
Answer:
The two in objectives of the Caliphate are as follows:
To firmly establish control over the tribes constituting the ‘umma’.
To raise resources of the state.
Posted by Neha Kumari Paswan 5 years, 3 months ago (9798783)
- 1 answers
Gaurav Seth 5 years, 3 months ago (2898529)
Mrs Dorling is an important character of Marga Minco’s short story The Address’. She is introduced to us as the mother of a fifteen-year old daughter. Like her daughter, Mrs Dorling has a ‘broad back’. When the narrator rings the bell, Mrs Dorling appears wearing the green knitted cardigan of the narrator’s mother. This shows how mercilessly she is using all ‘nice things’ of Mrs S.
Mrs Dorling’s behaviour towards Mrs S’ daughter is quite cold, unfriendly and inhuman. When the narrator introduces herself as the daughter of Mrs S, Mrs Dorling shows no sign of affection. Her remarks are very shocking and uncharitable. She utters : “Have you come back ?” She is not at all pleased to receive the daughter of Mrs S. She doesn’t feel “convenient”. She very coldly asks her to come “another time”.
Mrs Dorling lacks human qualities of head and heart. She is selfish. She is rude and ill mannered. She also lacks good sense and decency. She only knows how to exploit people and situations to her own advantage. She exploits Mrs S’s fear for war. She walks away with all her ‘nice things’ to 46, Marconi Street. She makes no effort to return them when the narrator visits her.

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Gaurav Seth 5 years, 3 months ago (2898529)
दिन की रोशनी को छोड़कर रात में टेबल लैंप के सामने काम करने के कारण लेखिका को चश्मा लगाना पड़ा। जब पहली बार लेखिका ने चश्मा लगाया तो उसके चचेरे भाई ने उसे छेड़ते हुए कहा कि, देखो! कैसी लग रही है! आँख पर चश्मा लगाया ताकि सूझे दूर की पर नहीं लड़की को मालूम सूरत बनी लंगूर की!
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