Electric Fields: The Invisible Force Around Charges

An electric field is the invisible region around a charged object where it can push or pull other charges.
Positive charges create outward-pointing fields, while negative charges create inward-pointing fields.
The strength of an electric field weakens with distance—just like gravity.
Electric field lines never cross and always show the direction a positive charge would move.
The closer the field lines are, the stronger the force in that region.
Electric fields explain why charged balloons stick to walls or why hair rises in static electricity.
The field of a single point charge is spherical, radiating equally in all directions.
When multiple charges are nearby, their fields combine—sometimes reinforcing, sometimes canceling.
Electric fields are measured in newtons per coulomb, showing the force per unit charge.
From lightning strikes to computer chips, electric fields control the behavior of charges everywhere.