A sensitive instrument is to be shielded from the strong electrostatic fields in its environment. Suggest a possible way.

What is electrostatic shielding? What is its importance?

Answer the following questions: A certain region of space is to be shielded from magnetic fields. Suggest a method.

Which of the following figures cannot possibly represent electrostatic field lines?

Which among the curves shown in Fig. cannot possibly represent electrostatic field lines? :

In what way is an electric field different from a magnetic field?

Answer the following questions:An electron travelling west to east enters a chamber having a uniform electrostatic field in north to south direction. Specify the direction in which a uniform magnetic field should be set up to prevent the electron from deflecting from its straight line path.

Write a relation between electric field at a point and its distance from a short dipole.