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Ask QuestionPosted by Rina Rina 6 years ago
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Tenzin Dolker 6 years ago
Posted by Malkit Singh 6 years ago
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Posted by Maulee Shree Mittal 6 years ago
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Tenzin Dolker 6 years ago
Yogita Ingle 6 years ago
Electric current flows through the coil when the switch is ON, and the iron core acts as an electromagnet. The iron core attracts the hammer towards it. The hammer hits the bell and produces a sound. The circuit breaks at the screw contact when the hammer moves towards the iron core. At this point, the iron core ceases to be an electromagnet. The hammer is pulled back to its original position due to the spring action of the steel rod, and then touches the contact again to complete the circuit. The circuit is completed and current flows through the coil again, and the hammer strikes the bell again. The process repeats itself and you hear a ringing sound since the hammer keeps hitting the bell, until the switch is released.
Posted by Bhanu Sahu 6 years ago
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Posted by Bhanu Sahu 6 years ago
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Yogita Ingle 6 years ago
Formation of soil: Soil is formed by weathering. Weathering is the process of breaking down of rocks by the action of wind, water and climate. Formation of even one inch of soil takes many years.
Composition of Soil: Soil contains humus, water, clay, sand and gravel.
Posted by Murugan G 6 years ago
- 1 answers
Gaurav Seth 6 years ago
Pythagoras Theorem. (B audhayan Theorem)
Theorem 8.3: - In a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
Given: - 
is a right angle of 
To Prove:-
Construction:-
is drawn
Proof:- In
Or, AB2 = AC X AD ---------------------(i)
Similarly
Or, BC2 = AC X CD ---------------------(ii)
Adding (i) and (ii) we get
AB2 + BC2 = AC X AD + AC X CD
= AC X (AD + CD)
= AC X AC
= AC2
Or, AC2 = AB2 + BC2
Posted by Santhosh Reddy 6 years ago
- 1 answers
Yogita Ingle 6 years ago
Given side of the square park = 66 m
Hence area of square park = side × side
= 66× 66 = 4356 sq m
Given length of rectangular park, l = 90 m
Let the breadth of the rectangular park be "b"
Area of rectangular park = l × b
But given area of rectangular park = area of square park
⇒ 90 × b =4356
⇒ b = 4356/90 = 48.4
Hence breadth of the rectangular park is 48.4 m.
Posted by Annriya Benny 6 years ago
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Posted by Sonal Singh 6 years ago
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Posted by Sonal Singh 6 years ago
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Posted by Gautam Kumar 6 years ago
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Posted by Sanjay A 6 years ago
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Posted by Naman Ahden 6 years ago
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Gaurav Seth 6 years ago
S.N. |
Differences |
Red Blood Cells/ Corpuscles (RBC) |
White Blood Cells/ Corpuscles (WBC) |
| 1 | Also called | Also called “Erythrocytes” | Also called “Leukocytes” |
| 2 | Origin | They are produced in red bone marrow. | Mostly bone marrow, also produced in lymph nodes, spleen, etc. |
| 3 | Nucleus | Nucleus Absent | Nucleus Present |
Yogita Ingle 6 years ago
| RBC – Red Blood Cells | WBC – White Blood Cells |
| Red blood cells are called Erythrocytes. | White Blood Cells are called Leucocytes or Leukocytes. |
| RBCs are shaped as bi-concave discs. | These have an irregular shape. |
| Size varies from 6 – 8 µm in diameter. | Size varies from 12 – 17 µm in diameter. |
| The lifespan of RBC is about 120 days. | The lifespan of WBC is around 12-20 days after which, they are destroyed in the lymphatic system |
| Red blood cells do not have a nucleus at maturity. | WBCs are characterized by the presence of a large central nucleus. |
| Due to the presence of haemoglobin, these cells appear red in colour. | These cells are colourless, as they do not have any pigment. |
| Only one type of RBCs exists. | Different types of WBC’s are found in the blood such as neutrophils, B lymphocytes, T lymphocytes, monocytes, basophils, eosinophils. |
| They help in the transport of respiratory gases to different parts of the human body | They help in producing antibodies to fight against diseases causing microbes. |
| RBCs are produced in the red bone marrow | These cells are produced in the red bone marrow, lymph nodes, and spleen, etc. |
Posted by Reshma Edate 6 years ago
- 2 answers
Yogita Ingle 6 years ago
Shifting cultivation also known as swidden agriculture is a traditional form of cultivation which has been in practice since ancient times in many parts of Asia, Africa and South America.
In shifting cultivation, a part of the forest land was cleared, trees were burnt and their ashes were sprinkled on the field. Seeds were sown and crops were grown. After cultivating the land for about two to three years, it was left fallow for few years for the forests to grow back. Another patch of forests was then cleared for the purpose of cultivation.
Swidden agriculture has many local names such as lading in Southeast Asia, milpa in Central America, chitemene or tavy in Africa and chena in Sri Lanka. In India, it is known by different names in different states like dhya, penda, bewar, nevad, jhum, podu, khandad and kumri.
Posted by S N 6 years ago
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Posted by Eswaran R 6 years ago
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Posted by Kshitij Jha 6 years ago
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Kshitij Jha 6 years ago
Posted by Shybi Paul 6 years ago
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Posted by Lakshman Singhania 6 years ago
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Meghna Thapar 5 years, 10 months ago
Glowing of bulb, heating of electric iron and heating water in geyser are the devices based on the heating effect of current.
Posted by Ayush Rajput 6 years ago
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Meghna Thapar 5 years, 10 months ago
The swift movement of the falling water droplets along with the rising air creates lightning and sound.
Posted by Ayush Rajput 6 years ago
- 2 answers
Yogita Ingle 6 years ago
Cyclones are also called Hurricane in USA and Typhoon in Japan and Philippines
Posted by Aakanksha Shah 6 years ago
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Posted by Mayuk Teotia 6 years ago
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Posted by Arnav Rathore 6 years ago
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Posted by Manners Services 6 years ago
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Tenzin Dolker 6 years ago
3Thank You