define electric feild strenght.write its SI unit is it scalar or vector?
Any electrically charged object produces an electric field. This field has an effect on other charged objects in the vicinity. The field strength at a particular distance from an object is directly proportional to the electric charge, in coulomb s, on that object. The field strength is inversely proportional to the distance from a charged object.
Electric field strength is a quantitative expression of the intensity of an electric field at a particular location. The standard unit is the volt per meter (v/m or vm-1). A field strength of 1 v/m represents a potential difference of one volt between points separated by one meter.Its a vector quantity.