Question

Define conduction of electricity?

Answer 1

Conduction of electricity:

• Conduction of electricity is the movement of the charged particles in an organized manner resulting in a total movement of charge through the material. When charged particles move in an appropriate motion we get an electric current.
• The conduction of electricity through a solution involves the movement of charged particles.
• The phenomenon associated with electrical conduction through gases has found many applications in modern technology.
• Electricity flows through conductors in two ways.

(i) Electron movement as in the case with most metals.

(ii) Flow of ions which may be charged atoms or molecules.

For example:

• In an aqueous solution, sulphuric acid dissociates into $2{\mathrm{H}}^{+}$ and ${{\mathrm{SO}}_4}^{2-}$ which are positive and negative ions.
• The positive charges are attracted to the negative electrode and the negative charges are attracted to the positive electrode.
• This movement is known as ion flow or ion drift.