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Why electromagnetic waves are transverse in nature

Posted by Shoyam Sullere 7 years, 4 months ago

CBSE > Class 12 > Physics

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Write working of transformer Chapter electromagnetic induction

Posted by Jasmer Panjetha 7 years, 4 months ago

CBSE > Class 12 > Physics

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Why electron doesn't affect internal balance force by generating electric force while revolving around nucleus in any orbit

Posted by A X 7 years, 4 months ago

CBSE > Class 12 > Physics

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If wavelength for Layman series is 1000nm, find its Balmer and Brackett series?

Posted by Amanpreet Bajwa 7 years, 4 months ago

CBSE > Class 12 > Physics

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List three components for the production of X-RAYS.

Posted by Amanpreet Bajwa 7 years, 4 months ago

CBSE > Class 12 > Physics

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What will be the energy level of an electron jump from Paschen series?

Posted by Amanpreet Bajwa 7 years, 4 months ago

CBSE > Class 12 > Physics

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What is law of inertia

Posted by Nishu Rajpoot 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Shubham Thakur 7 years, 4 months ago

According to the Law of Inertia if any object is in motion is continue in motion or any object is in rest it will be in rest until an external force applied on it

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What is SI unit of magentic intesity

Posted by Pooja Kencharaddi 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Suhani C 7 years, 4 months ago

Tesla or Weber per square metre

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Monu Kumar Soni 7 years, 4 months ago

Tesla

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What are the important topics in ray optics??

Posted by Saumya Agrawal 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Manan Bedi 7 years, 4 months ago

Lens maker formula,TIR,all microscopes and telescopes,relation between angle of minimum deviation and refractive index,dispersion of light

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Theory of hysterisis curve

Posted by Deepika Dahiya 7 years, 4 months ago

CBSE > Class 12 > Physics

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Why does water have more dielectric constant than mica

Posted by Mohd Bilal Nasir 7 years, 4 months ago

CBSE > Class 12 > Physics

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Give reason electric field is always normal to the equipotential surface

Posted by Suhani C 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Ritu Singh 7 years, 4 months ago

In equipotential surface ,dw/dq=0 It means Va-Vb=0 E.dl=0 E.l cos 0=0 It shows 0=90 degree

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Give Reason-If a charged or an uncharged conductor is placed in an external electric field,the field inside the conductor is zero.

Posted by Dhruv Bansal 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Ritu Singh 7 years, 4 months ago

The charge inside the conductor get arranged oppositivly to the external electric field.the charge cancel out each other

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What is scattering angle

Posted by Dattatreya R Mankani Mankani 7 years, 4 months ago

CBSE > Class 12 > Physics

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Which publications physics book should i prefer for scoring good marks - pradeep or dinesh

Posted by Abd Fan 7 years, 4 months ago

CBSE > Class 12 > Physics

3 answers

Richa Keshari 7 years, 4 months ago

Kumar Mittal

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Ritu Singh 7 years, 4 months ago

I think pardeep

1Thank You

Suhani C 7 years, 4 months ago

Both

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States biot-savart's law and express this law in the vector form

Posted by Ap Thakur 7 years, 4 months ago

CBSE > Class 12 > Physics

2 answers

Shorya Pratap Singh 7 years, 4 months ago

Biot savart s law It states that magnetic field is directly proportional to 'I','dl',sin theta and inversely proportional to square of distance B=k Idlsin theta/r^2 In vector form B==k Idlsin theta/(r1-r2)^2

3Thank You

Bawa Bawa 7 years, 4 months ago

It is used to calculate indused magnetic field

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Cyclotrone derivation

Posted by Shivam K 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Shivam K 7 years, 4 months ago

What is cyclotrone

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Difference between electric suseptibility and magnetic suseptibility?

Posted by Lipak Mohapatra 7 years, 4 months ago

CBSE > Class 12 > Physics

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What is Skin-Effect?

Posted by Arpit Kumar Sharma 7 years, 4 months ago

CBSE > Class 12 > Physics

1 answers

Richa Keshari 7 years, 4 months ago

the tendency of a high-frequency alternating current to flow through only the outer layer of a conductor.

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Why the dielectric constant of a metal is infinity?

Posted by Sayantan Datta 7 years, 4 months ago

CBSE > Class 12 > Physics

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What is integral value

Posted by Prabhat Singh 7 years, 4 months ago

CBSE > Class 12 > Physics

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Why does conservation of mass vary with situations with respect to its velocity and time change?

Posted by Lipak Mohapatra 7 years, 4 months ago

CBSE > Class 12 > Physics

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What is angular dispersion?give the formula.

Posted by Unnati Verma. Unnati Verma. 7 years, 4 months ago

CBSE > Class 12 > Physics

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Water

Posted by Prashant Singh 7 years, 4 months ago

CBSE > Class 12 > Physics

0 answers

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Why do electri field lines don't form closed loop?

Posted by Diwakar Kumar 5 years, 8 months ago

CBSE > Class 12 > Physics

3 answers

Bharvi Dani 7 years, 4 months ago

Because in a loop everything does not move in the same direction. Here the field lines move from positive to negative but they don't move back from negative to positive. It moves in only one direction. So electric field lines don't form a closed loop.

0Thank You

Shubham Thakur 7 years, 4 months ago

Because electric field lines start from positive charge end at negative charge

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Lipak Mohapatra 7 years, 4 months ago

Due to conservative nature of electric field.for more information refer to pg-25 of the textbook.

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A circular coil of wire consisting of 100 turns,each of radius 8.0cm carries a current of 0.40A . What is the magnitude of the magnetic field B at the centre of the coil?

Posted by Dheeraj Yadav 7 years, 4 months ago

CBSE > Class 12 > Physics