CBSE > Class 12 > Physics | CBSE Board | Homework Help

For cbse SL Arora and Ncert and if u are preparing for jee HC is best and of u are a neet aspirant then go through with DC payday and akash apex series.

2Thank You

Aman Kumar 6 years, 5 months ago

Yah...S.L ARORA best h

0Thank You

Priya Dharshini ? 6 years, 5 months ago

For boards u can refer sl arora for competitive exams dc pandey for physics...

2Thank You

Godfather Raj 6 years, 5 months ago

SL Arora

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ANSWER

How many watts in 1 hp

Posted by Laxman Chaubey 6 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Uday Mann 6 years, 5 months ago

746

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Ayushi Ayushi 6 years, 5 months ago

745.7 watts

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ANSWER

two identical charges of 1 micro coulomb are kept on (0,2m) and (0,-2m) respectively calculate the magnitude of the force acting on 2 micro coulomb charge placed at (-5m,0)

Posted by Kurda Ram 4 years, 9 months ago

CBSE > Class 12 > Physics

2 answers

Murlidhar Ingle 4 years, 9 months ago

distribute a charge of 1c into two pary such that these parts experience the maximum force when they are kept at a distance of 1km

1Thank You

Murlidhar Ingle 4 years, 9 months ago

two ide

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ANSWER

Two points charges of charge value Q and small q you are placed at distance x and x by 2 respectively from a third charge of charge value for q all charges being in the same straight line calculate the magnitude and nature of charge q such that the net force experienced by the charge q is zero

Posted by Harshit Tiwari 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Amperes circuital law

Posted by Danish Danish 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

To find coulomb,s force,From where its distance taken between two charges. Is it from centre or from Outside.

Posted by Vishal Patel 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Amit Kumarsingh 6 years, 5 months ago

The distance between their centrs.?☺

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ANSWER

If 16 micro coloumb are charge in a square at each vertices with side 0.2 m. find the resultant in an point

Posted by Rezibuddin Baruah 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 5 months ago

110.24N is the answer

1Thank You

ANSWER

I am feeling stressed from science what should I do..

Posted by Mohitkumar Malik 6 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Ayush Verma 6 years, 5 months ago

Relax and think about your goal which u want to achieve and see how far u from it . Then study with confidence

1Thank You

Niharika Donta 6 years, 5 months ago

Relax ur mind then focus on science

2Thank You

ANSWER

What is the formula for finding an induced charge on an object?

Posted by Palak Talreja 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

A prism of 60 degree produces angle of minimum deviation 40degree. What is its refractive index? Also calculate the angle of incidence

Posted by Pratham .M 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

why does the transfer of charges not take place from the rod to the ball

Posted by Rajandra 123 Kumbhkar 456 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Priya Ravi 6 years, 5 months ago

Rod..is a metal..and ball ki a nonmetal..which is an insulator..that's why it does'nt allow flow of charges through it.

2Thank You

ANSWER

20 marks ka questions one word rhenge ki multiple choice ??

Posted by Raj Chourasia 6 years, 5 months ago

CBSE > Class 12 > Physics

3 answers

Manika Gupta 6 years, 5 months ago

Priya is correct 1 markers can be fill ups , true/ false , mcqs , logicals and short answers

0Thank You

Priya Dharshini ? 6 years, 5 months ago

20 marks are informed as objective questions only.... it can be either mcq,fill ups,very short ans

1Thank You

Aman Kumar 6 years, 5 months ago

Multiple choice.....news toh kuch aeysi hi hai

2Thank You

ANSWER

bhaiya physics ki ncert word by word learn kar sakte he kya ya phir sl arora se ya pradeep se reading

Posted by Tirthesh Jain 6 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Ankur Yadav 6 years, 5 months ago

I preferred Sl arora.It is good for both board and some competitive exams. But solution of numericals is not good everytime.Sometimes numericals sol is in tough way.

0Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 5 months ago

physics ki NCERT.... I mean ni smjh aata ussay... baaki apki shradha.... but SL ker lo jub simple language may smjh skte hai toh Chinese kyu dekhe... ? ?

3Thank You

ANSWER

Dielectric constant of water is 80 what is permittivity

Posted by Sudhanshu Bagwari 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Pankaj Chadda 6 years, 5 months ago

80×8.85×10^-12

0Thank You

ANSWER

an eletron or protron are at distance of 1 angrostrom .the moment of this dipole will be

Posted by Kajal Goyal 6 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Aman Kumar 6 years, 5 months ago

Sayad...ye ho...??

0Thank You

Aman Kumar 6 years, 5 months ago

1.6×10^-19× 10^-10

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ANSWER

Can a charge body attract an uncharge body

Posted by Bhupendra Sejal Meena 6 years, 5 months ago

CBSE > Class 12 > Physics

4 answers

Tirthesh Jain 6 years, 5 months ago

0Thank You

Manika Gupta 6 years, 5 months ago

YES due to the phenomenon of induction.......when a charge body lets say -vely charged body bring close an uncharge the positive charge get accumulated towards negative charge and negative charge of the body get accumulated towards other end of the body...through earthing we transfer the negative charge of the body to the ground..now remove the already charged body now the uncharge body gets positively charged..

2Thank You

Aman Kumar 6 years, 5 months ago

The negative charged body can be thought to be an electron rich spieces...when bought near the uncharged body, it repels the free electron from the uncharged body towards its opposite end.As the closer end of uncharged body experiences the lack of electrons, which is the sign of positive charged .Hence, the end of two bodies develop opposite charged and mutual attraction occurs.

1Thank You

Aman Kumar 6 years, 5 months ago

The answer is YES

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ANSWER

Why electric field lines pass through di electric medium ?

Posted by Ayush Kumar Singh 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Old Fact 6 years, 5 months ago

At heigh potential

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ANSWER

Additive nature of charge

Posted by Pankaj Verma 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Pankaj Chadda 6 years, 5 months ago

Charges add like real numbers example:2C+3C=5C CHARGE IS A SCALAR QUANTITY

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ANSWER

Prove the coulumbs law

Posted by Suman Kumar 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Ayushi Ayushi 6 years, 5 months ago

Suppose two like charge (q1,q2)are put r meter distance . According to coulomb 's law Force is directly proportional to q1×q2 And force is inversely proportional to 1/r^2 So F is directly proportional to q1×q2/r^2 F=k q1×q2/r^2 Where k=9×10^9=Constant

2Thank You

ANSWER

Coulomb's law force between two point charges

Posted by Kamlesh Devi 6 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Aman Kumar 6 years, 5 months ago

F= Kq1q2/r2

2Thank You

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 5 months ago

F =kq1q2/r²

1Thank You

ANSWER

Can any one define electric ??? potential and electric potential difference please????

Posted by @@Ditya ®°@Thore????? 6 years, 5 months ago

CBSE > Class 12 > Physics

5 answers

Aman Kumar 6 years, 5 months ago

Wlc ?brother

0Thank You

@@Ditya ®°@Thore????? 6 years, 5 months ago

Thanks aman bhaii

0Thank You

Aman Kumar 6 years, 5 months ago

Hope this helps

0Thank You

Aman Kumar 6 years, 5 months ago

Electric potential difference:- The amount of work done to bring a unit charge from one potential point to another potential point is called Electric potential difference...

4Thank You

Aman Kumar 6 years, 5 months ago

Electric potential:- The amount of work done to bring a unit charge at a point from infinity is called Electric potential...

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ANSWER

A metallic sphere having no net charge is placed near a finite metal plate carrying a positive charge. The electric force on the sphere will be????

Posted by Bharat Khutela 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Charge of electron

Posted by Varun Prasad 6 years, 5 months ago

CBSE > Class 12 > Physics

3 answers

Hritik Kumar 6 years, 5 months ago

0Thank You

Abhay Kumar Kushwaha 6 years, 5 months ago

1.6*10^-19

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Priya Dharshini ? 6 years, 5 months ago

Charge of electron is 1.6021 × 10^-19 c....

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ANSWER

Can ever photons have a charge if not why?

Posted by Harsh Kumar 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Arun Sahu 6 years, 5 months ago

photons have no charge this is due to absence of masss in photons and as we know that charge always comes with mass .

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ANSWER

What is the origin of frictional forces

Posted by Harsh Kumar 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Hritik Kumar 6 years, 5 months ago

When the origin of friction force then two body comes in contact

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ANSWER

If we release a charge particle in constant electric field it always move toward lower potential energy.( true/false) give reasons

Posted by Arshita Maury 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the statement of superposition therom???

Posted by Ayushi Ayushi 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Neeraj Bagauli 6 years, 5 months ago

It states that the total force exerted on a charge is equal to the vector sum of forces exerted by indivisual charges

1Thank You

ANSWER

A travelling telescope is focussed at the bottom of tank over a coin. Now tank is filled up-to a height of 25 cm with a liquid of refractive index 1.6 By what distance would the telescope be moved to focus on the coin again??

Posted by Priya Prakash 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Priya Prakash 6 years, 5 months ago

Somebody Pls answer .............!!

0Thank You

ANSWER

Ray optics ke 5-5 answer de dia auro ke to do

Posted by Vijay Dhangar 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 5 months ago

dielectric constant for silver wala hai vo I think fix answer hai Jo question may mention hota hai..I am not sure... for that... nd next wala mujhe aata hai but time lagega

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