PHYSICAL QUANTITY

Electric field strength: formulas and units of measurement

Electric field strength: symbol E, unit V/m, N/Cl. Formulas and explanations for Electricity.

Evolt per meter, newton per coulomb

KEY CONNECTIONS

Formulas

E = F / q

E = k|q| / (εr²)

E = U / d

E = σ / (2ε₀)

σ = q / S

NOTATION

: Electric field strength is the strength characteristic of the electric field.
: Force is a measure of the interaction of bodies that changes their movement or shape.
: Electric charge is a quantity that determines the participation of a body in electrical interaction.
: The Coulomb coefficient is the coefficient of electrical interaction of charges in a vacuum.
: Dielectric constant is a characteristic of the influence of the medium on the electric field.
: The distance between charges is the length of the segment between the charges under consideration.
: Electric voltage is the work done by the electric field when transferring a unit charge.
: Distance - the length of the space between selected points.
: Surface charge density is the charge per unit surface area.
: Electric constant is a coefficient characterizing the electric field in a vacuum.
: Area is the size of a surface or cross section.

THEORY

PRACTICE

Topics in order: the concepts, quantities and formulas of a lesson with explanations and examples.

Statements, answer options and a detailed walkthrough for every topic of the course.

A 10-question check-up, exercises with answer checking, and saved progress.