What is Electric Stress ?

Electric Stress :

• If unit positive charge is placed at some point in the field, the force experienced by it is said to be the electric stress at that point.
• Electric stress is a vector quantity.
• Now, suppose unit negative (-Ve) charge when placed at the same point in the electric field and unit positive charge experience the force in an opposite direction.
• The electric stress of the insulating material is subjected to mathematically voltage and is equal to the electric field stress.

          

           and therefore,

       

           where, V is the voltage.

                       E is the electric stress.