An electrostatic field line cannot be discontinuous. Why ?

Important Questions on Interaction of Charged Particles, Electric Field and Potential

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 29

Two electric field lines never cross each other. Why ?

MEDIUM

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 30

A charge $q$ is placed at the centre of the line joining two equal charges $Q$. Show that the system of three charges will be in equilibrium if $q=-\frac{Q}{4}$

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 31

The electric field and electric potential at any point due to a point charge kept in air is $20 N{C}^{-1}$ and $10 J{C}^{-1}$ respectively. Compute the magnitude of this charge.

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 32

Which orientation of an electric dipole is a uniform electric field would correspond to stable equilibrium ?

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 33

Can two equipotential planes intersect each other ? Give reason.

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 34

What is the work done in moving a test charge $q$ through a distance of 1cm along the equatorial axis of an electric dipole?

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 35

Define the term 'potential energy' of charge $q$ at a distance $r$ in an external field ?

EASY

12th West Bengal Board

IMPORTANT

A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 2 - Interaction of Charged Particles, Electric Field and Potential>EXERCISE 2>Q 36

Depict the equipotential surfaces for a system of two identical positive point charges placed at a distance $\text{'}d\text{'}$ apart.