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State of explain the law of conservation of charges State colombs law in electrostatics

Posted by Preeti Singhania 7 years, 3 months ago

1 answers

Manan Bedi 7 years, 3 months ago

The electric charges can neither be created nor destroyed they can only be transferred from one body to another. For example: the Rocksalt ionises in aqueous solution NaCl forms Na+ and Cl- As the total charge is zero before and after the ionization, so charge is conserved Coulomb's law states that force between two point charges is directly proportional to product of magnitude of the two charges and inversely proportional to square of distance between them.

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State and explain(1) the law of conservation of charges (2) stat colombs law in electrostatics

Posted by Preeti Singhania 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Vivek Raj Puri 7 years, 3 months ago

Law of conservation of charge means that charge can neither be created nor destroy but it can be transferred from 1 body to another and coulomb law states that force acting between two charges is directly proportional to product of their magnitude and inversely proportional to the square of distance between them.

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How Will the capacitance of a capacitor change when a dielectric slab is introduce between the plates of capacitor

Posted by Divia Sharma 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Himanshu Lamba 7 years, 3 months ago

It becomes 'k' times the original capacitance

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Plz give me the blueprint of physics 2018-19

Posted by Malay Mahajan 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How can get sample which are issue by cbse compulsorly ??

Posted by Ritik Pal 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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Improve exam date for 12th 2018

Posted by Ashish Kumar 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Did cbse made new rule about numerical weightage in physics paper

Posted by Sohail Khan 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Syllabus

Posted by Vijay Yadav 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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Define electric dipole moment acting on an electric dipole in terns of torque acting on it when placed in a uniform electric field.

Posted by Divya Bharti 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Parth Sarthi 7 years, 3 months ago

torque = p (dipole moment) x E (electric field) . it is a cross product

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koi to karo reply

Posted by Lovepreet Lovepreet 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Rishabh Sahu 7 years, 3 months ago

Reply to what?

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the sum of two point charges is 6 uc . they attract each other with the force of 0.9N .when kept 40 cm apart in vacuum calculate the charges.

Posted by Lovepreet Lovepreet 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Lovepreet Lovepreet 7 years, 3 months ago

mera ye ques solve ho gya hai q1+(-q2)=6×10^-6 c -1 ( because attractive force ) f=kq1q2/r^2 0.9=9×10^9 (6×10^-6+q2)q2 we can take q2 as x after solving we get q1=6.25×10^-6c q2=0.25×10^-6c we can check the given question by placing the value of q1 and q2 in eq. 1

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Why two electric field lines do not cross each other

Posted by Vaibhav Singh 7 years, 3 months ago

CBSE > Class 12 > Physics

3 answers

Vinay Rawat 7 years, 3 months ago

Because anybody in nature cannot have two direction at one position thats why electric field and do not cross each other

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Khushi Bansal 7 years, 3 months ago

We know that electic field is a vector quantity it has a specific direction at each and every point. If they cross each other then at the point of intersection of two electric field lines there will be two direction of electric field at a time which is not possible.

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Ashutosh Singh 7 years, 3 months ago

Becase electric field lines do not form close loops

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Charge is scalar or vector quantity

Posted by Aditya Yadav Aditya 7 years, 3 months ago

CBSE > Class 12 > Physics

4 answers

Shruti Jaiswal 7 years, 3 months ago

Scalar quntity Q=ne

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Vaibhav Singh 7 years, 3 months ago

Scalar quantity

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Niharika Srivastav 7 years, 3 months ago

Scalar quantity

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Deep Gill 7 years, 3 months ago

Electric charge is a scalar quantity

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reference books has some formulas which are not in ncert books. is it right if i use them in exams?

Posted by Anurag Lamba 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Ashutosh Singh 7 years, 3 months ago

Rd sharma or rs aggrawal

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will the marks distribution for each chapters remain same in compartment exam

Posted by Yuqi Bhutia 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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how to study for longer duration

Posted by Ashish Parashar 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Rishabh Sahu 7 years, 3 months ago

Proper sleep , regular study breaks ,proper food ,and meditation will be good if you feel troubled by exhaustion during study If your problem is different that is Otherwise if you don't find time to study due to school and coaching clash then try to go only on those days for those classes which you feel are actually important. Skip useless school assignments or complete them in school itself .

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Area vector???

Posted by Vish Kumar 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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Hurrah! I got 97 ℅ in class 12 ?

Posted by Shobhit Tiwari 7 years, 3 months ago

CBSE > Class 12 > Physics

7 answers

Rhitika Rai 7 years, 3 months ago

congrates

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Tanu Tanu 7 years, 3 months ago

Congratulations

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Shruti Jaiswal 7 years, 3 months ago

Congrats

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Rishabh Jaiswal 7 years, 3 months ago

Then would you like to give us some tips that how to study and how to focus constantly on all the subjects, so we can also gain good percentage as you have achieved.........

1Thank You

Milan John 7 years, 3 months ago

Congratulations Shobhit Tiwari! May your future aspirations come true!

1Thank You

Vish Kumar 7 years, 3 months ago

Congo

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Manan Bedi 7 years, 3 months ago

Congratulations

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Three point charges q1 ,q2,and Q3 are kept at points A B and C . Derive expression for electrostatic potential energy of the system

Posted by Priya Nair 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

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The electric field due to a charge conducting sphere of radius 10cm at distance of 20cm from the centre is 1.5x1000 N/C radially inwards calculate- 1-what is the charge nd nature on the surface 2-calculate the maximum electric field due to this charge sphere at its position 3- also calculate the potential at the place of maximum nd minimum electric field

Posted by Shiwangi Kothari 7 years, 3 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How to get 90+ in physics

Posted by Mansi Jaiswal 7 years, 3 months ago

CBSE > Class 12 > Physics

1 answers

Rishabh Jaiswal 7 years, 3 months ago

Try to revise optics chaptet from class10 book,,,,,, then touch 12th physics book..........And also I would prefer Pradeep book to enhance your interest towards physics,..........try to get command of derivation of formulae.....and keep on revising...... . I told by experience.

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Is two like charges attract each other

Posted by Hhfd Vccbn 7 years, 3 months ago

CBSE > Class 12 > Physics

2 answers

Vivek Raj Puri 7 years, 3 months ago

yes , two like charges can attract each other if one charge is larger than the other then the largest charge will induced the opposite sign of charge on the other then they attract each other.

1Thank You

Sunila Sharma 7 years, 3 months ago

Repell

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Difference between net outward and inward flux

Posted by Lahari Singaraju 7 years, 3 months ago

CBSE > Class 12 > Physics