MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

We assume the potential of earth zero. Can it be assume +100 volts ? What will be the effect of it on the measurement of electric potential at a point and that of potential difference ?

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 73

Draw a plot showing the variation of Electric field E due to a point charge Q at a distance r .

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 73

Draw a plot showing the variation of

The electric potential V with distance r due to a point 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 74
Draw the line of force for a hollow metallic sphere carrying a positive charge. Assume that the sphere is insulated from the earth and is also far away from any other charged or uncharged bodies. If a positive charge is brought near this charged sphere, will it still remain equipotential ? Explain.
HARD
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 75

An electric dipole is formed by two charges q and -q placed at the two ends of an insulating rod of length d and negligible mass. Write down the dipole moment. Is it a vector or a scalar? The dipole is then placed in a uniform electric field and is given a small angular displacement θ from its equilibrium position. What are the total force and torque acting on it?

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 76
What is surface density of charge ? How does it depend on the shape of the surface?
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 1
State coulomb's law. Define unit of charge is C.G.S. e.s.u. and SI unit. Explain what happens if the medium between the two charges is an insulating material. Find the dimension of ε0.
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 2
What is an electric field? Define electric intensity and electric potential in an electric field. Write the names of their SI and CGS units and also define them. Find the relation between these units.
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 3
Calculate the electric intensity and potential at a distance r from a point charge Q placed in a dielectric medium. Draw the sketch of electric lines of force. Determine the relation between the intensity and potential at a point in an electric field.