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

Let us assume electric field is not perpendicular.. Then in that case on the surface.. Two electric field will intersect at a point giving rise to two direction Tangentially of the electric field which is not possible hence all electric field lines are perpendicular

3Thank You

Aashna Chourasia 7 years ago

Because it is an eqipotential body

2Thank You

ANSWER

In which situation there is a displacement current but no conduction current

Posted by Anuj Singh 7 years ago

CBSE > Class 12 > Physics

1 answers

Rohan Nigam 7 years ago

in capicatior

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Physics passing marks theory

Posted by Karan Sharma 7 years ago

CBSE > Class 12 > Physics

2 answers

Karan Sharma 7 years ago

How to delete this ques

0Thank You

Gagan Preet Kaur 7 years ago

Your welcome karan Sharma

2Thank You

ANSWER

What is fabrication?

Posted by Kumari Chandani 7 years ago

CBSE > Class 12 > Physics

1 answers

Nikhil Kumar 7 years ago

I think it is the process in which we create the metal structure by different process like cutting, bending and assembling.

3Thank You

ANSWER

Waves for radar communication

Posted by Sumit Boss 7 years ago

CBSE > Class 12 > Physics

1 answers

Padma Lhamo 7 years ago

Microwaves

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an inductor L of inductance XL is connected in series with a bulb B and an a.c. source. How would brightness of the bulb change when (i) number of turn in the inductor is reduced, (ii) an iron rod is inserted in the inductor and (iii) a capacitor of reactance XQ = XL is inserted in series in the circuit Justify your answer in each case.

Posted by Sara Khan 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

for circuit used for transporting electric power, a low power factor implies large power loss in transmission. explain

Posted by Sara Khan 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why is shortwave band used for long distance radio broadcast?

Posted by Vaibhav Singh Negi 7 years ago

CBSE > Class 12 > Physics

1 answers

Janu Singh 7 years ago

Short wave bands have larger wavelenght and can reach long distances

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ANSWER

Why is the transmission of signals through a coaxial cable is not possible for frequencies greater than 20 megahertz??

Posted by Vaibhav Singh Negi 7 years ago

CBSE > Class 12 > Physics

1 answers

Prince Sharma 7 years ago

Do u not sleep

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ANSWER

When a body is earth connected, electrons from the earth flow into the body . this means

Posted by Naman Malik 7 years ago

CBSE > Class 12 > Physics

1 answers

Janu Singh 7 years ago

It means the earth, which can be considered the ocean of electrons passed few or neglegible amount of electrons to the body that was earthed.

1Thank You

ANSWER

Can i get cbse issued sample paper 2017-2018

Posted by Shivam Bhati 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Hey guys, How much syllabus is completed of physics for board exams

Posted by Nitika Neb 7 years ago

CBSE > Class 12 > Physics

0 answers

ANSWER

revise karne ka sabse effective tarika koi bta do yaar

Posted by Md Shakir 7 years ago

CBSE > Class 12 > Physics

2 answers

Janu Singh 7 years ago

1 give time to your books and question papers not on asking such questions. 2 ask questions that really worth like your doubts during studying 3

2Thank You

Nitika Neb 7 years ago

Solve ten year papers

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ANSWER

Why electron when jump to lower energy level, emit energy in the form of electromagnetic radiation not in some other form

Posted by Jatinder Duggal 7 years ago

CBSE > Class 12 > Physics

2 answers

Rahul Choudhary 7 years ago

Because when electron get energy it can jump in higher energy level orbit but this orbit has enough electron so the excited electron has to go back in its previous orbit (having low energy) that's why electron emit energy when jump to lower energy level

0Thank You

Suhani Rana? 7 years ago

I think this is because electron can only interact electro-magnetically

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ANSWER

Challenges of nanotechnology

Posted by Physics Pg 7 years ago

CBSE > Class 12 > Physics