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Conservation of electric charge

Posted by Sidharth Sidhu 8 years, 1 month ago

0 answers

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Distinguish between any two types of propagation of electromagnetic waves bases on a) frequency range over which they are applicable and b) communication system in which they are used

Posted by Akash Sidhu 4 years, 9 months ago

CBSE > Class 12 > Physics

1 answers

Sia ? 4 years, 9 months ago

There are mainly two approaches to geography. The first one is the systematic approach and the second one is the regional approach.
The systematic approach studies only one issue and continues to examine its spatial variations. That means related to different spaces, you study your location.
On the other hand, the regional approach studies the multiple characteristics after dividing or segmenting the location at hand, on the basis of region. Meaning you divide your location into regions, next you study characteristics of each region.

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what is bar magnet?

Posted by Dinesh Tudu 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Twinkle Pal 8 years, 1 month ago

Bar magnet is rectangular magnet that attracts pieces of iron cobalt ext. (Domain s theory)

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Mahima Kumari 8 years, 1 month ago

Bar which have poles on their end

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Can equipotential surfaces intersect each other.

Posted by Abhishek Rajput 8 years, 1 month ago

CBSE > Class 12 > Physics

6 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

No because at intersection the net potential will change(increase or decrease) then when you look at one surface then at intersection there is change and it can bo longer be called equipotential

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Mahima Kumari 8 years, 1 month ago

No bcoz they all are in same direction

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Abhishek Rajput 8 years, 1 month ago

But if u see inside hollow sphere there all space is equipotential surface so i think there why can't they intersect

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Pankaj Sihag 8 years, 1 month ago

Noooooooo because at point of intersection there will be two value of potential which is not possible

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Aryan Loomba 8 years, 1 month ago

No because if they did then there will be two perpendiculars hence two directions of electric field which is not possible

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Ishika Tanwani 8 years, 1 month ago

I think noo Coz electric field lines can't intersect each other and equipotential surfaces are perpe.to field lines....

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Why silicon and germanium are semiconductor in group 14?

Posted by Aman Jha 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mahima Kumari 8 years, 1 month ago

Due to some different properties

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Lens law is in accordance with the law of conservation of energy

Posted by Gracy Phiiveinai 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Jasmine Chhikara 8 years, 1 month ago

Yes. When a magnet is moved away or towards the coil some mechanical work have to be done against force of attraction or repulsion . This mechanical work is converted into electrical energy.

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Is heating effect of current included in CBSE syllabus , it is not listed in the syllabus of class 12th?

Posted by Shantanu Upadhyay 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Physics last year paper solution how to download

Posted by Amresh Vishwakarma 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Ishu Chouhan 8 years, 1 month ago

Last 7 years question papers physics with ans ka app download kar lo

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Physics mei zyada theory ayegi ya numerical??

Posted by Shivanshi Rana 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Mahima Kumari 8 years, 1 month ago

75%theory 25%numericals

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What is the positive and negative mass of 1 cup water?

Posted by Aashu Chandra 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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In CBSE practical, should ohms law graph pass through origin, if not will they deduct marks?

Posted by Shruti Santosh 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Why even after reraction frequency do not change when a monochromatic light on a surface separating two media ?????????????????

Posted by Pankaj Sihag 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Padmini Soni 8 years, 1 month ago

Because frequency is the characteristic of source and wavelength is the characteristic of medium

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Shruti Santosh 8 years, 1 month ago

Because changes in wavelength and velocity keeps the frequency constant.

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When a deuteron of mass 2.0141u

Posted by Chetna Katre 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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AB is a uniform wire of resistance 15 ohm and length 1m. It is connected to a cell E1 of emf 2V and neglible internal resistance and a resistance R. The balance point with another cell E2 of emf 75mV is found at 30 cm from end A . Calculate the value of R.

Posted by Jasnoor Kaur 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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What is quantisation of charge ?

Posted by Sonam Kumari 8 years, 1 month ago

CBSE > Class 12 > Physics

3 answers

Mahima Kumari 8 years, 1 month ago

Q=ne where n is always a whole number not a integral no

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Tanay Sharma 8 years, 1 month ago

q=Ne

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Sonam Kumari 8 years, 1 month ago

It state that electric charge of any object is equal to integer multiple of basic unit of charge

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Why electrostatic force is called central force

Posted by Sonam Kumari 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Jin Kazama 8 years, 1 month ago

it works along*

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Jin Kazama 8 years, 1 month ago

Bcz. it along the line joining 2 charges ?

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What is the value of absolute permittivity?

Posted by Monu Singh 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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What is the roll of band pass filter?

Posted by Aman Jha 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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What is angular spread?

Posted by Akash Agarwal 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Define dielectric constant in term of force between two charges

Posted by Kailash Vishwakarma 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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Importance of binding energy curve

Posted by Shivanshu Yadav 8 years, 1 month ago

CBSE > Class 12 > Physics

12 answers

Balbir Singh 8 years, 1 month ago

It tells whether fusion or fission takes place

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Jin Kazama 8 years, 1 month ago

Tres-2b is the darkest planet bcz. it absorb 99% light and emit only 1% light . Mere dark chocolate ??? se bhi dark hai ??? ??? ???

1Thank You

Aisha Grewal 8 years, 1 month ago

Dark planet itna to malum h

2Thank You

Aisha Grewal 8 years, 1 month ago

Yhi bta d

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Jin Kazama 8 years, 1 month ago

Niche hai ???

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Aisha Grewal 8 years, 1 month ago

Ni malum.. Tuje pta h...... Tu hii bta d

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Jin Kazama 8 years, 1 month ago

You know about Tres-2b

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Aisha Grewal 8 years, 1 month ago

1Thank You

Jin Kazama 8 years, 1 month ago

Hello bubban ?

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Aisha Grewal 8 years, 1 month ago

How r u

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Aisha Grewal 8 years, 1 month ago

Pr muje ni ATI ?????

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Aisha Grewal 8 years, 1 month ago

Bhot importance h...

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What is the value of 1 amu in kg

Posted by Shivanshu Yadav 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Rishabh Mishra 8 years, 1 month ago

1 amu = 1.06 * 10^-27

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Aisha Grewal 8 years, 1 month ago

Kya... Aj mne vrt rkha h m jwab ni d skta

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State biot savart law and apply it to find the magnetic field due to a circular loop carrying current at a point .at its centre and on the axis.

Posted by Somesh Kumar 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

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What is dead beat galvanometer

Posted by Aman Jha 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Jin Kazama 8 years, 1 month ago

Moving coil galvanometer ?

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What is a mirage?

Posted by Pratik Haldankar 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Aisha Grewal 8 years, 1 month ago

Yeah jin

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Jin Kazama 8 years, 1 month ago

मृगतृष्णा ?

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Please derive I=neavd

Posted by Aman Narain 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Atishay Jain 8 years, 1 month ago

Let area A length l of a conductor therefore total vol will be A*l now total electron be n*Al total charges will be nAl*e now Current l will be total charge upon time nAle/t=neA*l/t=neAvd

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Why is flowing of water is warm..?

Posted by Pratyush Singh 8 years, 1 month ago

CBSE > Class 12 > Physics