Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Jijjuvarapu Varun 7 years, 6 months ago
- 0 answers
Posted by Nishant Sharma 7 years, 6 months ago
- 1 answers
Yogita Ingle 7 years, 6 months ago
An electromagnet is a magnet that is created using an electric current, created by electricity.
Electromagnets are made out of a coil of wire (wire curled in series). This is more effective in producing a magnetic field than just a wire running straight. This effect can be strengthened by winding a wire tightly around a powerful core, made of magnetic material, such as iron.
Posted by Ankit Gaurav 7 years, 6 months ago
- 2 answers
Shruti Soni 7 years, 6 months ago
J Vigneshwar Reddy 7 years, 6 months ago
Posted by Ankit Gaurav 7 years, 6 months ago
- 1 answers
Yogita Ingle 7 years, 6 months ago
Semi-solids such as faeces that settle down during wastewater treatment are called sludge. This sludge is removed using a scraper and then transferred to a tank where it is decomposed by anaerobic bacteria to produce biogas. This biogas is used as a low-cost fuel for heating, cooking, etc. It is also used to produce electricity.
Posted by Ankit Gaurav 7 years, 6 months ago
- 0 answers
Posted by ꧁????? ?????꧂ 7 years, 6 months ago
- 2 answers
Abhishek Shinde 7 years, 6 months ago
Sinoy Sharma 7 years, 6 months ago
Posted by Roshan Pandey 7 years, 6 months ago
- 1 answers
Posted by Swagatika Mohapatra 7 years, 6 months ago
- 1 answers
Jyoti Sehrawat 7 years, 6 months ago
Posted by Swagatika Mohapatra 7 years, 6 months ago
- 2 answers
Akssa Joseph 7 years, 6 months ago
Posted by Rijo Kichu 7 years, 6 months ago
- 1 answers
Yogita Ingle 7 years, 6 months ago
Wind currents occur due to (a) uneven heating between the regions near the equator and the poles and the rotation of the earth and (b) uneven heating of land and water in coastal areas. The equatorial and tropical regions get hotter than the polar regions as they get maximum heat from the sun. The warm air at the equator rises, and the cold air moves in from the polar regions. The air moves due to uneven heating of the earth’s surface between the equator and poles, which results in the circulation of wind across the globe. But the wind flow is not in the exact north-south direction because a change in direction is caused by the rotation of the earth.
Posted by Kamlesh Patel 7 years, 6 months ago
- 1 answers
Yogita Ingle 7 years, 6 months ago
These are large plants where wastewater is cleaned before being sent to the nearest water bodies or being reused. The sewage treatment involves physical, chemical and biological processes to remove impurities from the wastewater.
1. Filtration: The wastewater is passed through bar screen. Large objects; like rags, sticks, plastic bags, cans, etc. are removed in this process.
2. Grit and Sand Removal: The wastewater is slowly passed through the sedimentation tank. Grit, sand and pebbles settle down at the bottom.
3. Sedimentation: Water is then sent to the sedimentation tank. Solids; like faeces settle at the bottom. Floatable impurities; like oil and grease float on the surface. A scraper removes the faeces from the water. The impurity thus collected is called sludge; which is sent to the sludge tank. The sludge can be used to produce biogas or to produce manure. A skimmer removes the floatable impurities. Now, the water is called clarified water.
4. Aeration: Air is pumped into clarified water so that bacteria can proliferate. Bacteria consume the human waste. It leaves food waste, soap and other unwanted materials in the water. The microbes settle down at the bottom after several hours. Water is then removed from the top. This water is fit for irrigation and can be used for that purpose.
5. Chlorination: Water purified through aeration is not fit for human consumption. It needs to be treated with chlorine. For this, bleaching powder is added to the water. The chlorine kills whatever germs may be left in the water. After chlorination, the water is fit for drinking.
Posted by Mukta Naik 7 years, 6 months ago
- 3 answers
Posted by Richa Sharma 7 years, 6 months ago
- 0 answers
Posted by Taniya Abcd 7 years, 6 months ago
- 1 answers
Anchal Joshi 7 years, 6 months ago
Posted by Laiba Shaikh 7 years, 6 months ago
- 3 answers
Amrutha Gouri 7 years, 6 months ago
Rijuta Joshi 7 years, 6 months ago
Posted by Ridhi Jangir 7 years, 6 months ago
- 2 answers
Nilesh Nager 7 years, 6 months ago
Posted by Rajput Ruhi Ruhan 7 years, 6 months ago
- 0 answers
Posted by Chirashree Ck 7 years, 6 months ago
- 2 answers
Anchal Joshi 7 years, 6 months ago
Posted by Kishore Gowtham 7 years, 6 months ago
- 2 answers
Posted by Navjot Singh 7 years, 6 months ago
- 1 answers
Posted by Shubhum Rajput 7 years, 6 months ago
- 0 answers
Posted by Prince Kumar 7 years, 6 months ago
- 3 answers
Piyush Bansal 7 years, 6 months ago
Posted by Shubhum Rajput 7 years, 6 months ago
- 0 answers
Posted by Atul Chauhan 7 years, 6 months ago
- 0 answers
Posted by V Sikka 7 years, 6 months ago
- 1 answers
Jilmeet Shah 7 years, 6 months ago
Posted by Yuvraj Rajpurohit 7 years, 6 months ago
- 1 answers
Aksaa Chawla 7 years, 6 months ago
Posted by Khadija Betma 7 years, 6 months ago
- 1 answers
Yogita Ingle 7 years, 6 months ago
The electrical resistance of a wire is greater for a longer wire and less for a wire of large cross sectional area. The resistance depends on
1. its length
2. its area of cross-section, and
3. the nature of its material.
The factor in the resistance, which takes into account the nature of the material, is the resistivity. Since it is temperature dependent, it can be used to calculate the resistance of a wire of given geometry at different temperatures.
Posted by Nafeesath Hunya 7 years, 6 months ago
- 2 answers
Namit Seth 7 years, 6 months ago
Posted by Anjali Singh 7 years, 6 months ago
- 1 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
