HARD
12th West Bengal Board
IMPORTANT
Earn 100
Draw a labelled diagram showing an electric dipole making an angle with uniform electric field .Derive the expression for the torque experienced by it.
Important Questions on Interaction of Charged Particles, Electric Field and Potential
HARD
12th West Bengal Board
IMPORTANT
Prove that work done to move a charge in an electric field does not depend on the path chosen, it depends only on the initial and final positions.
MEDIUM
12th West Bengal Board
IMPORTANT
Explain which property of electric force is essential to define electric potential? Why electric field is called conservative field?
EASY
12th West Bengal Board
IMPORTANT
Prove that the work done in any closed path in an electric field is zero.
HARD
12th West Bengal Board
IMPORTANT
What happens when a non-conducting material is placed in an electric field?
HARD
12th West Bengal Board
IMPORTANT
What happens when a conducting material is placed in an electric field?
HARD
12th West Bengal Board
IMPORTANT
Find the time-period of oscillation of an electric dipole in a uniform electric field
MEDIUM
12th West Bengal Board
IMPORTANT
Explain why electric field in a cavity in a conductor is zero, even when it is placed in a strong electric field. What is electric shielding or screening ?
HARD
12th West Bengal Board
IMPORTANT
Prove that in gold-leaf electroscope the leaves diverge only when there is a potential difference between the leaves and the metal case.
