The electric field strength from x=-a to x = a is the measure of the electric force per unit charge at any point within the region between x=-a and x=a. It is typically denoted by the symbol E and is measured in units of volts per meter (V/m).
The electric field strength is calculated by dividing the electric force acting on a point charge by the magnitude of the charge. In the case of a continuous charge distribution, it is calculated by integrating the electric field over the region between x=-a and x=a.
The electric field strength is affected by the magnitude and distribution of charges in the region between x=-a and x=a. It is also affected by the distance between the charges and the medium in which the charges are located.
The direction of the electric field at any point within the region between x=-a and x=a is the direction in which a positive test charge would move if placed at that point. In other words, the electric field always points from positive charges to negative charges.
The concept of electric field strength is used in various practical applications, such as designing electronic devices, calculating the forces on charged particles, and studying the behavior of electrically charged systems. It is also used in understanding the properties of electromagnetic radiation and in the development of technologies such as power transmission and medical imaging.
