Electric Definitions Flashcards
Electric field
Region where charged particles experience a force
Electric field strength
The force experienced per unit positive charge
Coulomb’s law
The force between two point charges is proportional to the product of the charges and inversely proportional to the square of their distance apart.
Electric potential energy
The work done to bring the particles from infinity to a separation of r
Electric potential
The work done per unit charge to bring a positive charge to that point from infinity.
Electric potential difference
The work done by a unit charge between 2 points
Gravitational are always attractive
Electric forces can be attractive or repulsive
Gravity can be ignored because…
All the particles have incredibly small masses so gravitational force is weaker than the electrostatic force.
Repulsive…
Positive axes, negative gradient, exponential
Attractive force
Negative axes, positive gradient, exponential
