Question

Describe the terms Electric field.

Answer 1

• The space around a charge up to which its electric force can be experienced is called electric field.
• If a test charge q0 is placed at a point where electric field is , then force on the test charge is

• The electric field strength due to a point source charge'q' at an observation point 'A at a distance 'r' from the source charge is given by

The unit of electric field is NC-1

• Electric field inside the cavity of a charged conductor is zero.
• If a charged or an uncharged conductor is placed in an external field, the field inside the conductor is zero. In case of charged conductor, electric field is independent of the shape of the conductor.