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 6 years, 10 months 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 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Rohan Nigam 6 years, 10 months ago

in capicatior

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ANSWER

Physics passing marks theory

Posted by Karan Sharma 6 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Karan Sharma 6 years, 10 months ago

How to delete this ques

0Thank You

Gagan Preet Kaur 6 years, 10 months ago

Your welcome karan Sharma

2Thank You

ANSWER

What is fabrication?

Posted by Kumari Chandani 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Nikhil Kumar 6 years, 10 months ago

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

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ANSWER

Waves for radar communication

Posted by Sumit Boss 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Padma Lhamo 6 years, 10 months 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 6 years, 10 months 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 6 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why is shortwave band used for long distance radio broadcast?

Posted by Vaibhav Singh Negi 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Janu Singh 6 years, 10 months 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 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Prince Sharma 6 years, 10 months ago

Do u not sleep

1Thank You

ANSWER

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

Posted by Naman Malik 6 years, 10 months ago

CBSE > Class 12 > Physics

1 answers

Janu Singh 6 years, 10 months 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.

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ANSWER

Can i get cbse issued sample paper 2017-2018

Posted by Shivam Bhati 6 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

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

Posted by Nitika Neb 6 years, 10 months ago

CBSE > Class 12 > Physics

0 answers

ANSWER

revise karne ka sabse effective tarika koi bta do yaar

Posted by Md Shakir 6 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Janu Singh 6 years, 10 months 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 6 years, 10 months 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 6 years, 10 months ago

CBSE > Class 12 > Physics

2 answers

Rahul Choudhary 6 years, 10 months 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? 6 years, 10 months ago

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

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ANSWER

Challenges of nanotechnology

Posted by Physics Pg 6 years, 10 months ago

CBSE > Class 12 > Physics