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Under what conditions is the permanent magnet obtained if a current carrying solenoid is used explain with the help of diagram

Posted by Kashish Choudhary 5 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 11 months ago

The conditions required to obtain permanent electromagnet when a current carrying solenoid is used are:

● The rod inside solenoid should be made of a magnetic material like steel, soft iron etc. This type of material can retain the magnetic properties for a long time after magnetization.

● Direct current should be used for solenoid.

● The turns should be closely packed and large in number for producing a uniform strong magnetic field

0Thank You

?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 5 years, 11 months ago

If we put a soft metal or any metal in place of solenoid and do copper coiling and when we pass current through it. It would become a permanent magnet

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ANSWER

Write the principle of modern periodic table

Posted by Parvati Devi 5 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Sneha Pandey 5 years, 11 months ago

Atomic Number

0Thank You

Ritika Kaushik 5 years, 11 months ago

Based on increasing atomic mass

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ANSWER

Properties of ionic compound.

Posted by 📕Queen 📕Queen 5 years, 11 months ago

CBSE > Class 10 > Science

8 answers

📕Queen 📕Queen 5 years, 11 months ago

I think there is a misunderstanding between us...just leave that talk and concentrate on your studies??? as we both are having boards ok

0Thank You

Dr. Shreyas Samarth 5 years, 11 months ago

?? 2-2 queen......ye kse.....

1Thank You

___ Alone _____ 5 years, 11 months ago

???iss app pr sab meko jante h iss id se!!!!!!!!!!!!!!

1Thank You

📕Queen 📕Queen 5 years, 11 months ago

Mera pehle se name queen hi hai ???

2Thank You

___ Alone _____ 5 years, 11 months ago

Oooye !! Ab tum kon ho????

2Thank You

Ritika Kaushik 5 years, 11 months ago

They have high melting or boiling point, solid in state,conduct electricity when dissolve in water ,solubal in water,hard and brittle

0Thank You

Dr. Shreyas Samarth 5 years, 11 months ago

Yes bro....u r right ??

1Thank You

Ankesh ...... 5 years, 11 months ago

They form crystals. ... They have high melting points and high boiling points. ... They have higher enthalpies of fusion and vaporization than molecular compounds. ... They're hard and brittle. ... They conduct electricity when they are dissolved in water. ... They're good insulators.

3Thank You

ANSWER

Draw ablle daigram of nephron

Posted by Black Gamers 5 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Abhinav ? 5 years, 11 months ago

3Thank You

ANSWER

What are limitatoions and drawbacks of dobreiner, octaves and mendeleev

Posted by Rohit Kumar 5 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 11 months ago

Two important limitations of dobreiner tridas are:
All known elements could not be classified into groups of triads on the basis of their properties .
Not all groups obeyed the Law of Triads. For example, nitrogen family does not obey the Law of Triads.

Limitations of Octaves:
(i) This law was applicable to the classification of elements up to calcium only. After calcium, every eighth element did not possess the properties similar to that of the first element.
(ii) Newlands assumed that only 56 elements existed in nature and no more elements would be discovered in the future.
(iii) In order to fit elements into his table, Newlands put even two elements together in one slot and that too in the column of unlike elements having very different properties. For example, the two elements cobalt (Co) and nickel (Ni) were put together in just one slot, and that too in the column of elements like fluorine, chlorine and bromine which have very different properties from these elements.

Limitations of Mendeléev’s classification

No fixed position could be assigned to hydrogen in the Periodic Table.
Isotopes discovered long after Mendeléev periodic classification of
elements imparted a challenge to Mendeleev’s Periodic Law.
The atomic masses of elements did not increase in a steady manner while going from one element to other which made it difficult to predict the number of elements that could be discovered between two elements.

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ANSWER

What is si unit of jule

Posted by Preeti Thakur 5 years, 11 months ago

CBSE > Class 10 > Science

5 answers

Kumkum Sarswat 5 years, 11 months ago

Joule itself is a SI unit........

0Thank You

Shivani Yadav 5 years, 11 months ago

Jule is SI unit of work done.

0Thank You

Jàtîñ Sîrölà 5 years, 11 months ago

Joule is also SI Unit of Energy.

0Thank You

??Geetha Sree ?? 5 years, 11 months ago

Joule itself is SI unit of the work done.

1Thank You

Saurabh Ķům-Ŕ 5 years, 11 months ago

joule is the si unit of work.

0Thank You

ANSWER

Reaction of silver

Posted by Chaudhary Rajan Yadav Ji 5 years, 11 months ago

CBSE > Class 10 > Science

2 answers

??Geetha Sree ?? 5 years, 11 months ago

Reaction of silver with what?

1Thank You

?(#Chocolate Lover)?? 5 years, 11 months ago

What??

0Thank You

ANSWER

Reaction of corrosion of aluminium

Posted by Chaudhary Rajan Yadav Ji 5 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 11 months ago

In case of tarnishing of silver articles, the metallic silver reacts with hydrogen sulphide or sulphur present in air and gets tarnished.

4Ag + 2H₂S +O2 → 2Ag₂S + 2H₂O

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ANSWER

We know that HCl is very reactive acid but why it not see your reaction in stomach

Posted by Rohit Raj 5 years, 11 months ago

CBSE > Class 10 > Science

5 answers

Kumkum Sarswat 5 years, 11 months ago

Due to the presence of mucus.....

0Thank You

Shivani Yadav 5 years, 11 months ago

Because mucus is present in the inner lining of stomach this is protects the walls of stomuch.

0Thank You

??Geetha Sree ?? 5 years, 11 months ago

Mucus is a sticky substance that is found attached to the inner lining of your stomach. It protects the stomach from being affected by the HCL.

1Thank You

Rajat Dubey 5 years, 11 months ago

Because mucus is present in the inner lining of stomach which protects the walls of stomach.

0Thank You

Diksha? 5 years, 11 months ago

Coz mucus is present in the inner lining of stomach which protects the stomach from from HCl

1Thank You

ANSWER

We know that hcl is very reactive acid but why it is not see your reaction

Posted by Rohit Raj 5 years, 11 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

What happened when a metal reacts with an acid

Posted by Niranjan Kumar 5 years, 11 months ago

CBSE > Class 10 > Science

6 answers

Kumkum Sarswat 5 years, 11 months ago

Metal salt + hydrogen gas......

0Thank You

Shivani Yadav 5 years, 11 months ago

Metal react with acid to give salt and hydrogen gas

0Thank You

Ritika Kaushik 5 years, 11 months ago

Metal react with acid to give salt and Hydrogen gas

0Thank You

??Geetha Sree ?? 5 years, 11 months ago

Metal + Acid gives Salt + Hydrogen.

1Thank You

Rajat Dubey 5 years, 11 months ago

When metal react with an acid then it produces salt and evolve (H).

0Thank You

Aviral Goyal 5 years, 11 months ago

Hydrogen gas is evolved except with nitric acid

0Thank You

ANSWER

Dry HCL gas is acidic or basic?

Posted by Abhishek Mishra 5 years, 11 months ago

CBSE > Class 10 > Science

3 answers

Ritika Kaushik 5 years, 11 months ago

It is neutral

0Thank You

??Geetha Sree ?? 5 years, 11 months ago

It is neither acidic nor basic. It is almost neutral. Its ph is almost 7. Whereas HCL is acidic because it conducts ions (electricity) in its acidic environment.

1Thank You

Rajat Dubey 5 years, 11 months ago

It is not acidic nor basic because dry HCL didn't conduct any ion.

0Thank You

ANSWER

Why lungs are called air tight chambers?

Posted by Harshita Singh 5 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 11 months ago

Thoracic chamber should be air tight in order to maintain different air volumes in the lung at different phases of respiration which is essential for breathing. Any change in the thoracic volume will reflect on the pulmonary volume.

0Thank You

Abhishek Mishra 5 years, 11 months ago

Because gaseous exchange takes place in lungs

0Thank You

ANSWER

Definition of centre of curvature

Posted by Vilash Rajput 5 years, 11 months ago

CBSE > Class 10 > Science

4 answers

Ritika Kaushik 5 years, 11 months ago

The centre of the sphere of which a mirror is a part Or is equal ti 2f

0Thank You

Rajat Dubey 5 years, 11 months ago

R=2f. Radius/Centre of curvature is equal to twice of focal length.

0Thank You

Ashwani Sharma 5 years, 11 months ago

The center of glass sphere from which the sperical mirror is cut out

0Thank You

Ayush Kumar 5 years, 11 months ago

The centre of hollow glass sphere of which the spherical mirror is a part of called centre of curvature

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ANSWER

Draw diagram of placenta and its its functions?

Posted by Babu Ram 5 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Ritika Kaushik 5 years, 11 months ago

Placenta help to provide nutrition to embryo in utreus

0Thank You

ANSWER

Explain what is short circuiting and overloading in an electric supply?

Posted by Babu Ram 5 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Dr. Jasmine Kaur ?? 5 years, 11 months ago

Overloading is where a device is drawing more current than the system is capable of drawing A short circuit means that a path has been caused that diverts the power of circuit it should be in into a path it should n't be in

2Thank You

ANSWER

Why do we prefer convex mirror as rear view mirror in vehicles?

Posted by Babu Ram 5 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Rajat Dubey 5 years, 11 months ago

Because it covers larger distance and show the coming objects small.

0Thank You

Dr. Jasmine Kaur ?? 5 years, 11 months ago

A convex mirror is used commonly as rear view mirror in vehicles as it shows a erect ,virtual and full size diminished image of distant objects with a wider view

1Thank You

ANSWER

ATP?

Posted by Diksha? 5 years, 11 months ago

CBSE > Class 10 > Science

19 answers

Shivani Yadav 5 years, 11 months ago

Adenosine tri_phosphate in present of our body

0Thank You

Ritika Kaushik 5 years, 11 months ago

Adenosine tri phosphate which is known as energy currency of the body

0Thank You

Rajat Dubey 5 years, 11 months ago

Adenosine tri- phosphate

0Thank You

Saksham Bhandari 5 years, 11 months ago

Adenosine tri -phosphate?

0Thank You

Saksham Bhandari 5 years, 11 months ago

Adenosine tri phosphate ?

0Thank You

Ankesh ...... 5 years, 11 months ago

Good morning sis

0Thank You

Vihitha Vasireddy 5 years, 11 months ago

Adenosine Tri Phosphate.

0Thank You

Dr. Shreyas Samarth 5 years, 11 months ago

Hloooo koi h...

1Thank You

___ Alone _____ 5 years, 11 months ago

Full form of ATP :- Ankeshbro thore pagal...?????

1Thank You

Shirin .Pvt 5 years, 11 months ago

1Thank You

Shreya ... 5 years, 11 months ago

Shirin..top or mai..padhti tk toh hu ni..top kaha se karungu..??

1Thank You

??????? ? 5 years, 11 months ago

Hii suhu

0Thank You

Shirin .Pvt 5 years, 11 months ago

Shreya aap toh top maroge boards mei?

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___ Alone _____ 5 years, 11 months ago

Hi ?

1Thank You

Shirin .Pvt 5 years, 11 months ago

Hlw?

0Thank You

Shirin .Pvt 5 years, 11 months ago

Adenosine tri phosphate?

0Thank You

___ Alone _____ 5 years, 11 months ago

1Thank You

??????? ? 5 years, 11 months ago

Ohhh

0Thank You

Shreya ... 5 years, 11 months ago

Adenosine Tri Phosphate

4Thank You

ANSWER

Sir

Posted by Abhishek Kumar Singh 5 years, 11 months ago

CBSE > Class 10 > Science

45 answers

Shreya ... 5 years, 11 months ago

Koi ni...aynege toh theek vrna kya krna..??kr lenge..

3Thank You

___ Alone _____ 5 years, 11 months ago

Mam ne bola tha nahi ayenge...but aj dusre section wali frnd se baat hui toh ussne btaya ussko usski teacher n btaya...????‍♀️??‍♀️

1Thank You

Shreya ... 5 years, 11 months ago

But kavyansh ni aane vale the..?

2Thank You

Shreya ... 5 years, 11 months ago

Ohh..ha ...thanku..??

2Thank You

___ Alone _____ 5 years, 11 months ago

Ooye!! Shreya mene tumhe hindi k paper m kaviyansh na ane wali baat btai thi nn...vo mam n btaya ki kavyansh ayenge but pehle kahi se bhi ajate the....but iss baar book m se hi ayenge......yeh hi btana tha?

1Thank You

Shreya ... 5 years, 11 months ago

Ha..suhu..batao..?

2Thank You

___ Alone _____ 5 years, 11 months ago

Only Shreya wali shreya suno...????

1Thank You

Shreya ... 5 years, 11 months ago

Mai or top..??

1Thank You

Shreya ... 5 years, 11 months ago

Yes..suhu..

1Thank You

Shreya Sharma?? 5 years, 11 months ago

Kon si wli

2Thank You

Shreya ... 5 years, 11 months ago

Ok..pr school ni h..?

2Thank You

___ Alone _____ 5 years, 11 months ago

Shreya...suno!!!?

2Thank You

Shirin .Pvt 5 years, 11 months ago

@diksha mujhe to utna bhi nhi aata hdi and undc kya kya hai pata nhi?

0Thank You

Shreya Sharma?? 5 years, 11 months ago

Agr aapki schl ho toh sunday ko 12pm aa jana nd aadya ko vi bula lena..

1Thank You

Shreya ... 5 years, 11 months ago

Bye..tc..sd..gn ..bestie..??

2Thank You

___ Alone _____ 5 years, 11 months ago

Mam..??

0Thank You

Shreya ... 5 years, 11 months ago

Kl..ni aungi syd..pakka ni pata..?

1Thank You

Diksha? 5 years, 11 months ago

Eco 1 n 2 ch ho jata h baki padre ka mn hi ni krta

1Thank You

Shreya Sharma?? 5 years, 11 months ago

Bye....bye...tc....gn... Shreya..kl 12pm pakka aana

2Thank You

Shirin .Pvt 5 years, 11 months ago

Economics nhi aata mujhe ?

1Thank You

Shreya ... 5 years, 11 months ago

Mera bhi bht slow..ans ni show ho rhe..

2Thank You

Shreya Sharma?? 5 years, 11 months ago

Hamara data bhut slow chl rha.....aapke mssg nhi aa rhe shreya?

2Thank You

??????? ? 5 years, 11 months ago

Yes shirin tell

1Thank You

Diksha? 5 years, 11 months ago

Sst k liye mere paas aa jao

1Thank You

Shirin .Pvt 5 years, 11 months ago

?koi sst me help kardo?

0Thank You

Shreya ... 5 years, 11 months ago

Na..yahi hu abhi..

2Thank You

Shreya Sharma?? 5 years, 11 months ago

Meri vi acchi chl rhi..☺️

1Thank You

Shreya Sharma?? 5 years, 11 months ago

Gyi kya .....

0Thank You

Shirin .Pvt 5 years, 11 months ago

Shreya 1 shreya 2?

0Thank You

Shreya ... 5 years, 11 months ago

2nd...??

1Thank You

Shreya ... 5 years, 11 months ago

Padhai bht acchi chl rhi h ...or apki..

1Thank You

Shreya Sharma?? 5 years, 11 months ago

Aur btao padhai kaise chl rhi.....2nd pre-board kvse h

1Thank You

??????? ? 5 years, 11 months ago

Hii bestie

0Thank You

Shreya Sharma?? 5 years, 11 months ago

Ohh

0Thank You

Shreya ... 5 years, 11 months ago

Hlo..shirin..

2Thank You

Shreya ... 5 years, 11 months ago

Apne yaad kiya mai aagyi..?..mai last time aai thi..tb reply kiya tha..aap ja chuki thi lekin..

1Thank You

Shreya Sharma?? 5 years, 11 months ago

Finally*

1Thank You

Shreya Sharma?? 5 years, 11 months ago

Yrr mai kvse tmse baat krna chah rhi thi......nd fibally

1Thank You

Shirin .Pvt 5 years, 11 months ago

Hlw shreya

0Thank You

Shreya Sharma?? 5 years, 11 months ago

Hii

1Thank You

Shreya ... 5 years, 11 months ago

Hlo...shreya bestie..

2Thank You

Shreya Sharma?? 5 years, 11 months ago

Shreya.....aadya??

2Thank You

Shreya Sharma?? 5 years, 11 months ago

Is anyone is here...

2Thank You

Shirin .Pvt 5 years, 11 months ago

Yes sir.

0Thank You

??????? ? 5 years, 11 months ago

Ji sir!...how can i help you?

1Thank You

ANSWER

Explain the following- A}Reactivity of Al decreases if it is dipped in HNo3 B}Carbon cannot reduce the oxides of Na or Mg C}NaCl is not a conductor of electricity in solid state whereas it does conduct electicity in aqueous solution as well as in molten state D}Iron articles are galvanished.E} Metals like Na,K,Ca and Mg are never found in their free state in nature.

Posted by Harsh Kumar 5 years, 11 months ago

CBSE > Class 10 > Science

3 answers

Ritika Kaushik 5 years, 11 months ago

A)HNO3 is a good oxidising agent so when Al dipped in it its reactivity get decrease.B)C is less reactive then Na and Mg.C)in water nacl dissolve and form ions.E)because they are very reactivr

1Thank You

Jiya 08 5 years, 11 months ago

A) it get oxidise B) carbon is less reactive then oxygen thus oxygen is use C) in liquid state it react with water and disociate H+ iona D) to protect them from corrosion E) bcz they r very reactive

1Thank You

Shirin .Pvt 5 years, 11 months ago

@ankesh diksha ko pata hai??

1Thank You

ANSWER

State the rule for determination of magnetic field produced around a current carrying conductor.

Posted by Dr Chhavi 5 years, 11 months ago

CBSE > Class 10 > Science

3 answers

Rajat Dubey 5 years, 11 months ago

All the rules can define direction of magnetic field lines.

0Thank You

Vihitha Vasireddy 5 years, 11 months ago

Maxwell's crock screw rule or right hand thumb rule.

0Thank You

Ghufran Ahmad 5 years, 11 months ago

Screw rule or maxwell's rght hand thumb rule

1Thank You

ANSWER

Why vinegar cannot use as a fuel

Posted by Aman Dwivedi 5 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Shivani Yadav 5 years, 11 months ago

Because vingar is acidic in nature .It can not be used as a fuel

0Thank You

Dr Chhavi 5 years, 11 months ago

Vinegar is acidic in nature it cannot be used as a fuel.

0Thank You

ANSWER

Name the harmone secreted by the following endocrine glands.Also mention one function of each hormone-{A}thyroid{B}pancreas{C}pituitary gland

Posted by Harsh Kumar 5 years, 11 months ago

CBSE > Class 10 > Science

2 answers

Rajat Dubey 5 years, 11 months ago

(A)thyroxine hormone. FUNCTION- IT REGULATES FATS PROTIENS AND CARBOHYDRATES IN OUR BODY. (B)insulin. FUNCTION- IT CONTROLS THE RATE OF SUGAR IN OUR BODY. (C)growth hormone. FUNCTION- IT REGULATES GROWTH. ON THIS HORMONE DWARFISM AND TALLNESS DEPEND.

1Thank You

Piyush Mittal 5 years, 11 months ago

A) thyroxin hormone regulate metabolism of fats , protein and carbohydrate in our body B) insulin and glucagon regulate rate of sugar C) growth hormone regulate growth

2Thank You

ANSWER

What is ozone?how is it formed?why is damage to the ozone layer a cause for concern?

Posted by Harsh Kumar 5 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Shubhi Pandey 5 years, 11 months ago

Ozone is a oxygen molecule that is O3 It is formed as 02+O= O3 by UV radiation of sun. If ozone layer is deplited then the sun's harmful rays directly reaches to the earth which is not good.

5Thank You

ANSWER

A salt used to make tasty and crispy pakoras is slightly alkaline.Identify the salt and write a chemical equation for its formation.list its two uses

Posted by Harsh Kumar 5 years, 11 months ago

CBSE > Class 10 > Science

1 answers

Ritika Rajput 5 years, 11 months ago

Baking soda is the salt EQUATION Nacl+H2O+NH3+CO2 =NaHCO3+NH4Cl USES It is uesd as a soda acid fire extinguisher It is also used as a antacid

1Thank You

ANSWER

What is O7

Posted by sahi****@***** 5 years, 11 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Why sky apeyars blue

Posted by Rohit Panchal 5 years, 11 months ago

CBSE > Class 10 > Science

4 answers

Rajat Dubey 5 years, 11 months ago

Because of atmospheric refraction.

1Thank You

Jiya 08 5 years, 11 months ago

Also add the relation of scatter with wavelength Wave length is inversely proportional with scattering

1Thank You

Rajput Vishakha 5 years, 11 months ago

The molecules of air and other fine particles in the atmosphere have size smaller than the wavelength of visible light. These are more effective in scatterting light of shorter wavelengths at the blue end than light of longer wavelengths at the red end. The red light has a wavelength about 1.8 times greater than blue light. Thus, when sunlight passes through the atmosphere, the fine particles in air scatter the blue colour more strongly than red. The scattered blue light enters our eyes, If the earth had no atmosphere, there would not have been any scattering. Then, the sky would have looked dark. The sky appears dark to passengers flying at very high altitudes, as scattering is not prominent at such heights.

1Thank You

K Shana 5 years, 11 months ago

Sky appears blue because blue has the shorter wavelength and so it scatters most in the sky which makes sky appear blue in colour

2Thank You

ANSWER

Mechanism of photosynthesis

Posted by Dr. Jasmine Kaur ?? 5 years, 11 months ago

CBSE > Class 10 > Science