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

If there is electric field in a conductor then free electron will move at the electrostatic condition which will be ghetto violation of law of conservation of Energy there there is no charge in conductor it comes to the surface.

2Thank You

ANSWER

What is the maximum U in rotating a dipole in external electric feild

Posted by Bhagyashree Sneha 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Reeta Purohit 8 years, 1 month ago

W=-p.e

3Thank You

ANSWER

Does electric charge follow electric field lines

Posted by Bhagyashree Sneha 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Is test charge +ve or -ve ?

Posted by Bhagyashree Sneha 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Neeraj Khati 8 years, 1 month ago

1Thank You

Reeta Purohit 8 years, 1 month ago

It is +ve

2Thank You

ANSWER

What is a impact parameter

Posted by Tanuj Kumar 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Lekha Raj 8 years, 1 month ago

Perpendicular distance b/w the initial velocity vector of a-particles and the center of the nucleus is called impact parameter.

2Thank You

ANSWER

A glass lense is immersed in water , what will be the effect in power?

Posted by Sachin Dwivedi 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Reeta Purohit 8 years, 1 month ago

If u(glass)>u(water) power decreases

1Thank You

ANSWER

Why is electrostatic potential constant throughout the volume of the conductor and has the same value on its surface?

Posted by Siraj Khan 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Working diagram of induction motor

Posted by Monty Gupta 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Mass defect and binding energy graph, what is binding energy and what graph says?

Posted by Anita Bhaskar 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Akshay Kumar 8 years, 1 month ago

mass defect is difference between the sum of mass of proton,neutron ( or nuecleon ) and the actual mass of neuclius

1Thank You

ANSWER

Dipole moment

Posted by Dhananjay Kumar 8 years, 1 month ago

CBSE > Class 12 > Physics

1 answers

Reeta Purohit 8 years, 1 month ago

Product of magnitude of one of the charges and dis. between them

0Thank You

ANSWER

Derive the lens formula for concave lense using nessasary Ray diagram

Posted by Varun Saini 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Derive snell's Law using hygens principles

Posted by Varun Saini 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What type of wavefront.will energy from a point source . Distant source..

Posted by Utkarsh Singh 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

define interference,

Posted by Anant Yadav 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

What is concept of magnetic dipole

Posted by Arya Chauhan 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

After comming india,Why does Siberian birds not forget their way when they go back to their country

Posted by Hifzur Rahman 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Electrical

Posted by Lalit Sharma 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

When a straight current carrying wire is bent in the form of a circular wire find the direction of induced current (assume the current in the wire from left to right)

Posted by Anushka Singh 8 years, 1 month ago

CBSE > Class 12 > Physics

0 answers

ANSWER

Why sun appears red during sunrise and sunset

Posted by Monu Bhati 8 years, 1 month ago

CBSE > Class 12 > Physics

2 answers

Aditya Santhosh 8 years, 1 month ago

red light reaches our eyes....

0Thank You

Aditya Santhosh 8 years, 1 month ago

During sunrise and sunset, sun is at maximum distance from an observer compared to that during noon, where it is minimum. The blue and other shorter wavelengths get scattered and does not reach the observer's eyes. Thus the light having larger wavelength ie.

1Thank You

ANSWER

Prakash

Posted by Harish Chandra Gupta 8 years, 1 month ago

CBSE > Class 12 > Physics