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✴️ Charge ➡️ It may be 0,-ve, +ve. ➡️Electric charge is always quantized. ➡️charge on a body does not depend on its speed. ➡️CHARGE is conserved. ✴️ Mass➡️Mass of a body is always +ve. ➡️Quantization of mass is not established yet. ➡️Mass of a body increases with its speed. ➡️Mass is not conserved by its self as mass can change into energy.

3Thank You

Abhishek Singh 6 years, 5 months ago

Main diffrence is that charge changes its property with change in velocity but mass doesnot.

0Thank You

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Find the value ofcritical angle for a material of refrective index √3

Posted by Night Of Game 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

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The dielectric constant of a medium is unity.what wil be its permittivity ??

Posted by Utkarsh Mishra 6 years, 5 months ago

CBSE > Class 12 > Physics

3 answers

Aman Kumar 6 years, 5 months ago

Permitivity is 8.85×10^-12 C^2/Nm^2

2Thank You

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

κ=1........... permittivity of medium =absolute permittivity =8.85 * 10^-12

3Thank You

Ravi Singh 6 years, 5 months ago

8.85×10^-12 c^2N^-1m-2

2Thank You

ANSWER

What is elecric flux?

Posted by Kanishk Kumar 6 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Yogita Ingle 6 years, 5 months ago

Electric flux is the measure of flow of the electric field through a given area. Electric flux is proportional to the number of electric field lines going through a normally perpendicular surface.

The orientation of area element decides the amount of electric flux. Thus, the area element is a vector.
The vector associated with every area element of a closed surface is taken to be in the direction of the outward normal.
Area element vector ΔS = ΔSn̂, ΔS is magnitude of area element and n̂ is unit vectorin the direction of outward normal.
Electric flux, Δφ = EΔS = E ΔScosθ, θ is angle between E and ΔS.
Unit of electric flux is NC^-1m².

2Thank You

Lavi Baliyan 6 years, 5 months ago

The number of electric field lines pass through a particular area k/as electric flux.

3Thank You

ANSWER

Difference btw electric potential of a dipole and a single charge

Posted by Sumit Kalia 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Ravi Singh 6 years, 5 months ago

Due to single charge electric potential is inversely propotional to distance but due to electric dipole it is propotional to distance square.

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two point charges + 10 microcoulomb and minus 10 microcoulomb are separated by a distance of 40 cm in air (1) calculate the electric potential energy of the system assuming that the potential at infinity is zero (2) draw an equipotential surface of the system (3) how much work is required to separate the two charges from two charges infinitely from each other .

Posted by Jayapriya M 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why incident light rays are inclined to principle axis in astronomical telescope while striking objective lens

Posted by N T 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

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Earth rotates on its own axis,from where does it get centripetal force for circular motion on its own aaxis?

Posted by Tejnarayan Singh 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

You have a pure gold ring of mass 19.7gm of 1% of total electron are removed then charge of the gold atomic mass 197 and atomic no 79

Posted by Priyanshu Rajput 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

How many electron must be added to one plate to another plate and removed from the other so as to store 25.0 j of energy in 5.0 nF parallel plate capacitor

Posted by Vivek Yadav 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the effect of zener

Posted by Naman Chettri 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

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Difference between coloum law and gravitational law

Posted by Rajkumar Dhankhar 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Hritik Kumar 6 years, 5 months ago

Columbs law is the directly proporntional to the product of the charges while grvitational forces is directly proportional to the product of the mases and it doesn't depends on medium and fe is depends on medium

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Calculate angle between tension in the strings or force between the bob of positive charged when placed in liquid

Posted by Bhanu .B 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

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which is the best book for physics to score 70/70

Posted by Tirthesh Jain 6 years, 5 months ago

CBSE > Class 12 > Physics

4 answers

Yash Sharma 6 years, 5 months ago

All books are best It only matters hard work and dedication

1Thank You

Priya Dharshini ? 6 years, 5 months ago

Sl arora and ncert are best books to score full marks

7Thank You

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

絕密... NCERT.

3Thank You

Aman Kumar 6 years, 5 months ago

Sab book best hote hai...Its ur work kii tum koi bhi ek book ko pakro and..lag jao bus.....definitely..ache no. Ayenge

4Thank You

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A charge QμC is placed at the centre of a cube. what is the flux coming out from any one surface.?

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

CBSE > Class 12 > Physics

8 answers

∂Αяѕнαиαα ყα∂Αѵ ??? 6 years, 3 months ago

I am am not

0Thank You

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

*by the way

2Thank You

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

na na.. ? ? ? ... φ=1/6.Q /ξο μNm²/c.

3Thank You

Aman Kumar 6 years, 5 months ago

Ooooohk...by the way...answer kya 1.807...hai

2Thank You

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

leave it aa gya answer mera... ? ?

1Thank You

Aman Kumar 6 years, 5 months ago

Is answer given in number..??

1Thank You

Ayush Verma 6 years, 5 months ago

Q/6E°

1Thank You

Aman Kumar 6 years, 5 months ago

Wait a min...I m trying

1Thank You

ANSWER

What is central force...?

Posted by Aman Garg 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Adarsh Deep Gupta 6 years, 5 months ago

That force which acts on centre are called central force

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ANSWER

If a parallel plate capacitor is charge by battery if it removes by battery and dielectric medium (k) between two plate capacitor what is effect it 1.charge 2.electric field 3.potential difference 4.capacitance 5.potential energy

Posted by Anshu Solanki 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

If a parallel plate capacitor is charge by

Posted by Anshu Solanki 6 years, 5 months ago

CBSE > Class 12 > Physics

2 answers

Anshu Solanki 6 years, 1 month ago

Enlist the macronutrient

0Thank You

Aman Kumar 6 years, 5 months ago

Charge by what??

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Two point charges of + 2 microcoulomb and + 6 microcoulomb repel each other with a force of 12 Newton if each is given an additional charge of - 4 microcoulomb then what will be the new force.

Posted by Durgesh Yadav 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Sheetal Hooda 6 years, 5 months ago

4 Newton will be the new force experienced.

1Thank You

ANSWER

Define first law of motion

Posted by Roshni Rasaily 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Hritik Kumar 6 years, 5 months ago

F=ma

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The electric potential V(x) in a region along the X-axis varies with the distance x(in m) according to the relation V(x) = 4x^2. Calculate the force experienced by a 1microC charge placed at point x = 1 m.

Posted by Priya Dharshini ? 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Electric potential due to point charge derivation by integration

Posted by Naina Tyagi 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is the orientation of the dipole

Posted by Ram Kishore Shrivastava 6 years, 5 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Write properities of elecric lines of force

Posted by Alia Zehra 6 years, 5 months ago

CBSE > Class 12 > Physics

1 answers

Yogita Ingle 6 years, 5 months ago

1. The electric lines of force are imaginary lines.
2. A unit positive charge placed in the electric field tends to follow a path along the field line if it is free to do so.
3. The electric lines of force emanate from a positive charge and terminate on a negative charge.
4. The tangent to an electric field line at any point gives the direction of the electric field at that point.
5. Two electric lines of force can never cross each other. If they do, then at the point of intersection, there will be two tangents. It means there are two values of the electric field at that point, which is not possible. Further, electric field being a vector quantity, there can be only one resultant field at the given point, represented by one tangent at the given point for the given line of force.
6. Electric lines of force are closer (crowded) where the electric field is stronger and the lines spread out where the electric field is weaker.
7. Electric lines of force are perpendicular to the surface of a positively or negatively charged body.
8. Electric lines of force contract lengthwise to represent attraction between two unlike charges.
9. Electric lines of force exert lateral (sideways) pressure to represent repulsion between two like charges.

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What is the cause of quantisation of charge

Posted by Rahul Yadav 6 years, 5 months ago

CBSE > Class 12 > Physics

5 answers

Hritik Kumar 6 years, 5 months ago

Due to friction

0Thank You

Sheetal Hooda 6 years, 5 months ago

Since the transfer of charge is due to the transfer of electrons and electrons are transferred as whole no ( integers) and not in fraction.

1Thank You

Yogita Ingle 6 years, 5 months ago

The quantization of electric charge is the property due to which all free charges are integral multiple of basic unit of charge of an electron (or proton) represented by e.
The basic cause of quantization is that only integral no. of electrons can be transferred form one body to another on rubbing.
Eg. When 1 electron is transferred ,the charges acquired by the two bodies will be

2Thank You

Lavi Baliyan 6 years, 5 months ago

Quantisation of charge on a body is due to the transfer of electrons and no. of electrons transferred cannot be fractional

2Thank You

Rakesh Tiwari 6 years, 5 months ago

Cause -during rubbing only integral multiple of electron travel from one body to another

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Definition of electric charge

Posted by Vivekanand Yadav 6 years, 5 months ago

CBSE > Class 12 > Physics