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

NCERT , SL ARORA, DC PANDEY, MODERN ABC, COMPREHENSIVE....select from these options........waise bhi padhna tumhe hai...soo jo book ki language tumhare liye easy ho....aur uska material acha ho...wahi lo

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Columb law in vector form

Posted by Gurpreet Singh 6 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Sumanpreet Kaur 6 years, 4 months ago

F=q1q2/r2 r^

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Is marking scheme of physics class XII available?

Posted by Uzma Akhtar 6 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Ďãřşháñăã Yadav ? ? ? 6 years, 4 months ago

not now as pattern is quite change this year by the mid-off July they will soon declare.

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Is there can 5 resistances in wheat stine bridge if yes then under what condition?

Posted by Vikrant Sharma 6 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

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A rheostat has 100turns of wire of radius 0.4mm having resiti vity of 4.20000000m.the diameter of each turn is 3cm findmaximum resistance it can introduce

Posted by Karuna Kumari 6 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

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A charge q is placed in the center of the line joining two positive charges Q. What is the value of charge q so the the system remain in equibrium.

Posted by Pankaj Thakur 6 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Abhishek Vishwakarma 6 years, 4 months ago

In this case....whatever be the nature or value of the charge'q' .It will always remain in equilibrium. It is sk because the net force acting on the charge q is always zero. (k•q•Q)/(x)^2=(k•q•Q)/(x)^2

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How many marks of numerical

Posted by Monu Saini 6 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Define physics

Posted by Chandan Tiwari 6 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Hritik Kumar 6 years, 4 months ago

Physics is the study of nature and its phenomenon

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Stym Shukla 6 years, 4 months ago

Physics is a branch of science in which we study about the physical nature and it's laws...

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If two charge is given,where should be third pt charge q be placed for it in equilibrium

Posted by Muskan Singh 6 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Ashwani Sahni 6 years, 4 months ago

It depends upon the magnitude to both the charges but it must be placed between that two charges..

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In adjoining circuit the battery E1 has an emf 12 volt and zero internal resistance while the batterE has an emf of 2volt if the ganvanometer G

Posted by Tarun Preet 6 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Physics questions with answers 2019

Posted by Rohit Ranjan 6 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

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Investigatory file

Posted by Nidhi Chouhan 6 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

If coulomb's law involved 1/r^3 dependence (instead of 1/r^2), then how would gauss's law is not valid here ????? Please explain Sir...

Posted by Aashish Prajapati 6 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Adeeb Ahmed 6 years, 4 months ago

Beacause if it is r^3 then this becomes volume(3d) instead of area(2d) so the electric flux get affected and if the flux get affected then gauss law is also affected

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Abhishek Vishwakarma 6 years, 4 months ago

Gauss' Law gives the number of electric field lines paasing perpendicular through a unit area.So it is independent of Coulomb's Law which gives the magnitude and direction of the electrostatic force.Therefore there would be no effect on gauss law.However the numerical value of flux may change.

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Electric field of a ring?...and at which point the field is max. ???

Posted by Aman Kumar 6 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Aman Kumar 6 years, 4 months ago

Thanks Sudarshan Sharma

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Sudarshan Sharma 6 years, 4 months ago

Kqx/(r^2+x^2) ^3/2 it is Max at R/root2... I have also answered your dipole question you can see it downwards

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what is polarisation ?

Posted by Vaibhav Kalshyan 6 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Rajkanta Soibam 6 years, 4 months ago

It's a mistake to me .........opposite to the direction of the electric field.

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Rajkanta Soibam 6 years, 4 months ago

The phenomenon in which electric field distorts in the negative electrons cloud around the positive atomic nuclei to the direction of field..

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Two negative and equal charges a and b are fixed at a certain distance 'd'.third charge may be in equilibrium at position

Posted by Arjita Singh 6 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Sumanpreet Kaur 6 years, 4 months ago

In the centre I.e d/2

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Did MCQ's will not come in final exam of class 12 of 20 marks?

Posted by Kapil Singh Meena 6 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Vivek Kumar 6 years, 4 months ago

May be it willshort answer type questions

1Thank You

Aman Kumar 6 years, 4 months ago

MCQ's hi toh aayega....20 marks mai...

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a long sheet is placed at midpoint at axis of dipole and perpendicular to axis, what will be the flux through sheet

Posted by Ayush Mishra 6 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Sudarshan Sharma 6 years, 4 months ago

It is a question of bm Sharma it's answer is q/Eo as the flux due to one point charge through a infinite sheet = q/2Eo

2Thank You

Aman Kumar 6 years, 4 months ago

flux is 0...i think..if wrong then correct

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Which refresher is best for class 12th physics

Posted by Deepanshi Garg 6 years, 4 months ago

CBSE > Class 12 > Physics

3 answers

Shivendra Yadav 6 years, 4 months ago

SL arora

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Varun Maheshwari 6 years, 4 months ago

Sl arora

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Aman Kumar 6 years, 4 months ago

Ab ager hum refresher k bare mai bataenge...toh woh hamare point of view k according hoga....but then..also according to me...SL arora, modern etc.....but I suggest ....check it by urself which book suits uh and feel easy 2 u

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