An electric field is a physical field that surrounds electrically charged particles and exerts a force on other charged particles within its vicinity. It is created by electric charges and is responsible for many phenomena, such as electricity and magnetism.
A dielectric is a material that does not conduct electricity easily and is often used as an insulator. Some common examples of dielectric materials are glass, rubber, and plastic.
The electric field in a capacitor is created by the buildup of opposite charges on the two plates. These charges are held in place by the insulating dielectric material. Therefore, the electric field is determined by the charge and distance between the plates, and not by the dielectric material itself.
If the dielectric material in a capacitor is changed, the capacitance (ability to store charge) of the capacitor will be affected. However, the electric field will remain the same as long as the charge and distance between the plates remain constant.
Yes, the electric field can be affected by external factors such as the presence of other electric charges or magnetic fields. However, the dielectric material itself does not directly affect the strength of the electric field in a capacitor.