Question

21.
Why do the electric field lines never cross each other?
22.
Why do the electrostatics field lines not from ciosed loops?
23.
Define the term mobility of charge carriers in a conductor. Write its S.I. unit.​

Answer 1

21.Answer:

The electric field does not direct in two directions that is why electric field lines never cross over each other. Electric field lines always point in one direction, at any point.

22.Answer:

If there was a closed field line a particle following that line would eventually return to the same place but having different energy so the field would not be conservative.

23.Answer:

Mobility of the charge carrier is defined as the drift velocity of the charge carrier per unit electric field. It is denoted by m and is given as. The SI unit of m is m2 V−1 s−1.